// Generated by the protocol buffer compiler.  DO NOT EDIT!
// source: common.proto

package org.apache.calcite.avatica.proto;

public final class Common {
  private Common() {}
  public static void registerAllExtensions(
      com.google.protobuf.ExtensionRegistryLite registry) {
  }

  public static void registerAllExtensions(
      com.google.protobuf.ExtensionRegistry registry) {
    registerAllExtensions(
        (com.google.protobuf.ExtensionRegistryLite) registry);
  }
  /**
   * <pre>
   * Has to be consistent with Meta.StatementType
   * </pre>
   *
   * Protobuf enum {@code StatementType}
   */
  public enum StatementType
      implements com.google.protobuf.ProtocolMessageEnum {
    /**
     * <code>SELECT = 0;</code>
     */
    SELECT(0),
    /**
     * <code>INSERT = 1;</code>
     */
    INSERT(1),
    /**
     * <code>UPDATE = 2;</code>
     */
    UPDATE(2),
    /**
     * <code>DELETE = 3;</code>
     */
    DELETE(3),
    /**
     * <code>UPSERT = 4;</code>
     */
    UPSERT(4),
    /**
     * <code>MERGE = 5;</code>
     */
    MERGE(5),
    /**
     * <code>OTHER_DML = 6;</code>
     */
    OTHER_DML(6),
    /**
     * <code>CREATE = 7;</code>
     */
    CREATE(7),
    /**
     * <code>DROP = 8;</code>
     */
    DROP(8),
    /**
     * <code>ALTER = 9;</code>
     */
    ALTER(9),
    /**
     * <code>OTHER_DDL = 10;</code>
     */
    OTHER_DDL(10),
    /**
     * <code>CALL = 11;</code>
     */
    CALL(11),
    UNRECOGNIZED(-1),
    ;

    /**
     * <code>SELECT = 0;</code>
     */
    public static final int SELECT_VALUE = 0;
    /**
     * <code>INSERT = 1;</code>
     */
    public static final int INSERT_VALUE = 1;
    /**
     * <code>UPDATE = 2;</code>
     */
    public static final int UPDATE_VALUE = 2;
    /**
     * <code>DELETE = 3;</code>
     */
    public static final int DELETE_VALUE = 3;
    /**
     * <code>UPSERT = 4;</code>
     */
    public static final int UPSERT_VALUE = 4;
    /**
     * <code>MERGE = 5;</code>
     */
    public static final int MERGE_VALUE = 5;
    /**
     * <code>OTHER_DML = 6;</code>
     */
    public static final int OTHER_DML_VALUE = 6;
    /**
     * <code>CREATE = 7;</code>
     */
    public static final int CREATE_VALUE = 7;
    /**
     * <code>DROP = 8;</code>
     */
    public static final int DROP_VALUE = 8;
    /**
     * <code>ALTER = 9;</code>
     */
    public static final int ALTER_VALUE = 9;
    /**
     * <code>OTHER_DDL = 10;</code>
     */
    public static final int OTHER_DDL_VALUE = 10;
    /**
     * <code>CALL = 11;</code>
     */
    public static final int CALL_VALUE = 11;


    public final int getNumber() {
      if (this == UNRECOGNIZED) {
        throw new java.lang.IllegalArgumentException(
            "Can't get the number of an unknown enum value.");
      }
      return value;
    }

    /**
     * @deprecated Use {@link #forNumber(int)} instead.
     */
    @java.lang.Deprecated
    public static StatementType valueOf(int value) {
      return forNumber(value);
    }

    public static StatementType forNumber(int value) {
      switch (value) {
        case 0: return SELECT;
        case 1: return INSERT;
        case 2: return UPDATE;
        case 3: return DELETE;
        case 4: return UPSERT;
        case 5: return MERGE;
        case 6: return OTHER_DML;
        case 7: return CREATE;
        case 8: return DROP;
        case 9: return ALTER;
        case 10: return OTHER_DDL;
        case 11: return CALL;
        default: return null;
      }
    }

    public static com.google.protobuf.Internal.EnumLiteMap<StatementType>
        internalGetValueMap() {
      return internalValueMap;
    }
    private static final com.google.protobuf.Internal.EnumLiteMap<
        StatementType> internalValueMap =
          new com.google.protobuf.Internal.EnumLiteMap<StatementType>() {
            public StatementType findValueByNumber(int number) {
              return StatementType.forNumber(number);
            }
          };

    public final com.google.protobuf.Descriptors.EnumValueDescriptor
        getValueDescriptor() {
      return getDescriptor().getValues().get(ordinal());
    }
    public final com.google.protobuf.Descriptors.EnumDescriptor
        getDescriptorForType() {
      return getDescriptor();
    }
    public static final com.google.protobuf.Descriptors.EnumDescriptor
        getDescriptor() {
      return org.apache.calcite.avatica.proto.Common.getDescriptor().getEnumTypes().get(0);
    }

    private static final StatementType[] VALUES = values();

    public static StatementType valueOf(
        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
      if (desc.getType() != getDescriptor()) {
        throw new java.lang.IllegalArgumentException(
          "EnumValueDescriptor is not for this type.");
      }
      if (desc.getIndex() == -1) {
        return UNRECOGNIZED;
      }
      return VALUES[desc.getIndex()];
    }

    private final int value;

    private StatementType(int value) {
      this.value = value;
    }

    // @@protoc_insertion_point(enum_scope:StatementType)
  }

  /**
   * Protobuf enum {@code Rep}
   */
  public enum Rep
      implements com.google.protobuf.ProtocolMessageEnum {
    /**
     * <code>PRIMITIVE_BOOLEAN = 0;</code>
     */
    PRIMITIVE_BOOLEAN(0),
    /**
     * <code>PRIMITIVE_BYTE = 1;</code>
     */
    PRIMITIVE_BYTE(1),
    /**
     * <code>PRIMITIVE_CHAR = 2;</code>
     */
    PRIMITIVE_CHAR(2),
    /**
     * <code>PRIMITIVE_SHORT = 3;</code>
     */
    PRIMITIVE_SHORT(3),
    /**
     * <code>PRIMITIVE_INT = 4;</code>
     */
    PRIMITIVE_INT(4),
    /**
     * <code>PRIMITIVE_LONG = 5;</code>
     */
    PRIMITIVE_LONG(5),
    /**
     * <code>PRIMITIVE_FLOAT = 6;</code>
     */
    PRIMITIVE_FLOAT(6),
    /**
     * <code>PRIMITIVE_DOUBLE = 7;</code>
     */
    PRIMITIVE_DOUBLE(7),
    /**
     * <code>BOOLEAN = 8;</code>
     */
    BOOLEAN(8),
    /**
     * <code>BYTE = 9;</code>
     */
    BYTE(9),
    /**
     * <code>CHARACTER = 10;</code>
     */
    CHARACTER(10),
    /**
     * <code>SHORT = 11;</code>
     */
    SHORT(11),
    /**
     * <code>INTEGER = 12;</code>
     */
    INTEGER(12),
    /**
     * <code>LONG = 13;</code>
     */
    LONG(13),
    /**
     * <code>FLOAT = 14;</code>
     */
    FLOAT(14),
    /**
     * <code>DOUBLE = 15;</code>
     */
    DOUBLE(15),
    /**
     * <code>BIG_INTEGER = 25;</code>
     */
    BIG_INTEGER(25),
    /**
     * <code>BIG_DECIMAL = 26;</code>
     */
    BIG_DECIMAL(26),
    /**
     * <code>JAVA_SQL_TIME = 16;</code>
     */
    JAVA_SQL_TIME(16),
    /**
     * <code>JAVA_SQL_TIMESTAMP = 17;</code>
     */
    JAVA_SQL_TIMESTAMP(17),
    /**
     * <code>JAVA_SQL_DATE = 18;</code>
     */
    JAVA_SQL_DATE(18),
    /**
     * <code>JAVA_UTIL_DATE = 19;</code>
     */
    JAVA_UTIL_DATE(19),
    /**
     * <code>BYTE_STRING = 20;</code>
     */
    BYTE_STRING(20),
    /**
     * <code>STRING = 21;</code>
     */
    STRING(21),
    /**
     * <code>NUMBER = 22;</code>
     */
    NUMBER(22),
    /**
     * <code>OBJECT = 23;</code>
     */
    OBJECT(23),
    /**
     * <code>NULL = 24;</code>
     */
    NULL(24),
    /**
     * <code>ARRAY = 27;</code>
     */
    ARRAY(27),
    /**
     * <code>STRUCT = 28;</code>
     */
    STRUCT(28),
    /**
     * <code>MULTISET = 29;</code>
     */
    MULTISET(29),
    UNRECOGNIZED(-1),
    ;

    /**
     * <code>PRIMITIVE_BOOLEAN = 0;</code>
     */
    public static final int PRIMITIVE_BOOLEAN_VALUE = 0;
    /**
     * <code>PRIMITIVE_BYTE = 1;</code>
     */
    public static final int PRIMITIVE_BYTE_VALUE = 1;
    /**
     * <code>PRIMITIVE_CHAR = 2;</code>
     */
    public static final int PRIMITIVE_CHAR_VALUE = 2;
    /**
     * <code>PRIMITIVE_SHORT = 3;</code>
     */
    public static final int PRIMITIVE_SHORT_VALUE = 3;
    /**
     * <code>PRIMITIVE_INT = 4;</code>
     */
    public static final int PRIMITIVE_INT_VALUE = 4;
    /**
     * <code>PRIMITIVE_LONG = 5;</code>
     */
    public static final int PRIMITIVE_LONG_VALUE = 5;
    /**
     * <code>PRIMITIVE_FLOAT = 6;</code>
     */
    public static final int PRIMITIVE_FLOAT_VALUE = 6;
    /**
     * <code>PRIMITIVE_DOUBLE = 7;</code>
     */
    public static final int PRIMITIVE_DOUBLE_VALUE = 7;
    /**
     * <code>BOOLEAN = 8;</code>
     */
    public static final int BOOLEAN_VALUE = 8;
    /**
     * <code>BYTE = 9;</code>
     */
    public static final int BYTE_VALUE = 9;
    /**
     * <code>CHARACTER = 10;</code>
     */
    public static final int CHARACTER_VALUE = 10;
    /**
     * <code>SHORT = 11;</code>
     */
    public static final int SHORT_VALUE = 11;
    /**
     * <code>INTEGER = 12;</code>
     */
    public static final int INTEGER_VALUE = 12;
    /**
     * <code>LONG = 13;</code>
     */
    public static final int LONG_VALUE = 13;
    /**
     * <code>FLOAT = 14;</code>
     */
    public static final int FLOAT_VALUE = 14;
    /**
     * <code>DOUBLE = 15;</code>
     */
    public static final int DOUBLE_VALUE = 15;
    /**
     * <code>BIG_INTEGER = 25;</code>
     */
    public static final int BIG_INTEGER_VALUE = 25;
    /**
     * <code>BIG_DECIMAL = 26;</code>
     */
    public static final int BIG_DECIMAL_VALUE = 26;
    /**
     * <code>JAVA_SQL_TIME = 16;</code>
     */
    public static final int JAVA_SQL_TIME_VALUE = 16;
    /**
     * <code>JAVA_SQL_TIMESTAMP = 17;</code>
     */
    public static final int JAVA_SQL_TIMESTAMP_VALUE = 17;
    /**
     * <code>JAVA_SQL_DATE = 18;</code>
     */
    public static final int JAVA_SQL_DATE_VALUE = 18;
    /**
     * <code>JAVA_UTIL_DATE = 19;</code>
     */
    public static final int JAVA_UTIL_DATE_VALUE = 19;
    /**
     * <code>BYTE_STRING = 20;</code>
     */
    public static final int BYTE_STRING_VALUE = 20;
    /**
     * <code>STRING = 21;</code>
     */
    public static final int STRING_VALUE = 21;
    /**
     * <code>NUMBER = 22;</code>
     */
    public static final int NUMBER_VALUE = 22;
    /**
     * <code>OBJECT = 23;</code>
     */
    public static final int OBJECT_VALUE = 23;
    /**
     * <code>NULL = 24;</code>
     */
    public static final int NULL_VALUE = 24;
    /**
     * <code>ARRAY = 27;</code>
     */
    public static final int ARRAY_VALUE = 27;
    /**
     * <code>STRUCT = 28;</code>
     */
    public static final int STRUCT_VALUE = 28;
    /**
     * <code>MULTISET = 29;</code>
     */
    public static final int MULTISET_VALUE = 29;


    public final int getNumber() {
      if (this == UNRECOGNIZED) {
        throw new java.lang.IllegalArgumentException(
            "Can't get the number of an unknown enum value.");
      }
      return value;
    }

    /**
     * @deprecated Use {@link #forNumber(int)} instead.
     */
    @java.lang.Deprecated
    public static Rep valueOf(int value) {
      return forNumber(value);
    }

    public static Rep forNumber(int value) {
      switch (value) {
        case 0: return PRIMITIVE_BOOLEAN;
        case 1: return PRIMITIVE_BYTE;
        case 2: return PRIMITIVE_CHAR;
        case 3: return PRIMITIVE_SHORT;
        case 4: return PRIMITIVE_INT;
        case 5: return PRIMITIVE_LONG;
        case 6: return PRIMITIVE_FLOAT;
        case 7: return PRIMITIVE_DOUBLE;
        case 8: return BOOLEAN;
        case 9: return BYTE;
        case 10: return CHARACTER;
        case 11: return SHORT;
        case 12: return INTEGER;
        case 13: return LONG;
        case 14: return FLOAT;
        case 15: return DOUBLE;
        case 25: return BIG_INTEGER;
        case 26: return BIG_DECIMAL;
        case 16: return JAVA_SQL_TIME;
        case 17: return JAVA_SQL_TIMESTAMP;
        case 18: return JAVA_SQL_DATE;
        case 19: return JAVA_UTIL_DATE;
        case 20: return BYTE_STRING;
        case 21: return STRING;
        case 22: return NUMBER;
        case 23: return OBJECT;
        case 24: return NULL;
        case 27: return ARRAY;
        case 28: return STRUCT;
        case 29: return MULTISET;
        default: return null;
      }
    }

    public static com.google.protobuf.Internal.EnumLiteMap<Rep>
        internalGetValueMap() {
      return internalValueMap;
    }
    private static final com.google.protobuf.Internal.EnumLiteMap<
        Rep> internalValueMap =
          new com.google.protobuf.Internal.EnumLiteMap<Rep>() {
            public Rep findValueByNumber(int number) {
              return Rep.forNumber(number);
            }
          };

    public final com.google.protobuf.Descriptors.EnumValueDescriptor
        getValueDescriptor() {
      return getDescriptor().getValues().get(ordinal());
    }
    public final com.google.protobuf.Descriptors.EnumDescriptor
        getDescriptorForType() {
      return getDescriptor();
    }
    public static final com.google.protobuf.Descriptors.EnumDescriptor
        getDescriptor() {
      return org.apache.calcite.avatica.proto.Common.getDescriptor().getEnumTypes().get(1);
    }

    private static final Rep[] VALUES = values();

    public static Rep valueOf(
        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
      if (desc.getType() != getDescriptor()) {
        throw new java.lang.IllegalArgumentException(
          "EnumValueDescriptor is not for this type.");
      }
      if (desc.getIndex() == -1) {
        return UNRECOGNIZED;
      }
      return VALUES[desc.getIndex()];
    }

    private final int value;

    private Rep(int value) {
      this.value = value;
    }

    // @@protoc_insertion_point(enum_scope:Rep)
  }

  /**
   * <pre>
   * The severity of some unexpected outcome to an operation.
   * Protobuf enum values must be unique across all other enums
   * </pre>
   *
   * Protobuf enum {@code Severity}
   */
  public enum Severity
      implements com.google.protobuf.ProtocolMessageEnum {
    /**
     * <code>UNKNOWN_SEVERITY = 0;</code>
     */
    UNKNOWN_SEVERITY(0),
    /**
     * <code>FATAL_SEVERITY = 1;</code>
     */
    FATAL_SEVERITY(1),
    /**
     * <code>ERROR_SEVERITY = 2;</code>
     */
    ERROR_SEVERITY(2),
    /**
     * <code>WARNING_SEVERITY = 3;</code>
     */
    WARNING_SEVERITY(3),
    UNRECOGNIZED(-1),
    ;

    /**
     * <code>UNKNOWN_SEVERITY = 0;</code>
     */
    public static final int UNKNOWN_SEVERITY_VALUE = 0;
    /**
     * <code>FATAL_SEVERITY = 1;</code>
     */
    public static final int FATAL_SEVERITY_VALUE = 1;
    /**
     * <code>ERROR_SEVERITY = 2;</code>
     */
    public static final int ERROR_SEVERITY_VALUE = 2;
    /**
     * <code>WARNING_SEVERITY = 3;</code>
     */
    public static final int WARNING_SEVERITY_VALUE = 3;


    public final int getNumber() {
      if (this == UNRECOGNIZED) {
        throw new java.lang.IllegalArgumentException(
            "Can't get the number of an unknown enum value.");
      }
      return value;
    }

    /**
     * @deprecated Use {@link #forNumber(int)} instead.
     */
    @java.lang.Deprecated
    public static Severity valueOf(int value) {
      return forNumber(value);
    }

    public static Severity forNumber(int value) {
      switch (value) {
        case 0: return UNKNOWN_SEVERITY;
        case 1: return FATAL_SEVERITY;
        case 2: return ERROR_SEVERITY;
        case 3: return WARNING_SEVERITY;
        default: return null;
      }
    }

    public static com.google.protobuf.Internal.EnumLiteMap<Severity>
        internalGetValueMap() {
      return internalValueMap;
    }
    private static final com.google.protobuf.Internal.EnumLiteMap<
        Severity> internalValueMap =
          new com.google.protobuf.Internal.EnumLiteMap<Severity>() {
            public Severity findValueByNumber(int number) {
              return Severity.forNumber(number);
            }
          };

    public final com.google.protobuf.Descriptors.EnumValueDescriptor
        getValueDescriptor() {
      return getDescriptor().getValues().get(ordinal());
    }
    public final com.google.protobuf.Descriptors.EnumDescriptor
        getDescriptorForType() {
      return getDescriptor();
    }
    public static final com.google.protobuf.Descriptors.EnumDescriptor
        getDescriptor() {
      return org.apache.calcite.avatica.proto.Common.getDescriptor().getEnumTypes().get(2);
    }

    private static final Severity[] VALUES = values();

    public static Severity valueOf(
        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
      if (desc.getType() != getDescriptor()) {
        throw new java.lang.IllegalArgumentException(
          "EnumValueDescriptor is not for this type.");
      }
      if (desc.getIndex() == -1) {
        return UNRECOGNIZED;
      }
      return VALUES[desc.getIndex()];
    }

    private final int value;

    private Severity(int value) {
      this.value = value;
    }

    // @@protoc_insertion_point(enum_scope:Severity)
  }

  /**
   * <pre>
   * Enumeration corresponding to DatabaseMetaData operations
   * </pre>
   *
   * Protobuf enum {@code MetaDataOperation}
   */
  public enum MetaDataOperation
      implements com.google.protobuf.ProtocolMessageEnum {
    /**
     * <code>GET_ATTRIBUTES = 0;</code>
     */
    GET_ATTRIBUTES(0),
    /**
     * <code>GET_BEST_ROW_IDENTIFIER = 1;</code>
     */
    GET_BEST_ROW_IDENTIFIER(1),
    /**
     * <code>GET_CATALOGS = 2;</code>
     */
    GET_CATALOGS(2),
    /**
     * <code>GET_CLIENT_INFO_PROPERTIES = 3;</code>
     */
    GET_CLIENT_INFO_PROPERTIES(3),
    /**
     * <code>GET_COLUMN_PRIVILEGES = 4;</code>
     */
    GET_COLUMN_PRIVILEGES(4),
    /**
     * <code>GET_COLUMNS = 5;</code>
     */
    GET_COLUMNS(5),
    /**
     * <code>GET_CROSS_REFERENCE = 6;</code>
     */
    GET_CROSS_REFERENCE(6),
    /**
     * <code>GET_EXPORTED_KEYS = 7;</code>
     */
    GET_EXPORTED_KEYS(7),
    /**
     * <code>GET_FUNCTION_COLUMNS = 8;</code>
     */
    GET_FUNCTION_COLUMNS(8),
    /**
     * <code>GET_FUNCTIONS = 9;</code>
     */
    GET_FUNCTIONS(9),
    /**
     * <code>GET_IMPORTED_KEYS = 10;</code>
     */
    GET_IMPORTED_KEYS(10),
    /**
     * <code>GET_INDEX_INFO = 11;</code>
     */
    GET_INDEX_INFO(11),
    /**
     * <code>GET_PRIMARY_KEYS = 12;</code>
     */
    GET_PRIMARY_KEYS(12),
    /**
     * <code>GET_PROCEDURE_COLUMNS = 13;</code>
     */
    GET_PROCEDURE_COLUMNS(13),
    /**
     * <code>GET_PROCEDURES = 14;</code>
     */
    GET_PROCEDURES(14),
    /**
     * <code>GET_PSEUDO_COLUMNS = 15;</code>
     */
    GET_PSEUDO_COLUMNS(15),
    /**
     * <code>GET_SCHEMAS = 16;</code>
     */
    GET_SCHEMAS(16),
    /**
     * <code>GET_SCHEMAS_WITH_ARGS = 17;</code>
     */
    GET_SCHEMAS_WITH_ARGS(17),
    /**
     * <code>GET_SUPER_TABLES = 18;</code>
     */
    GET_SUPER_TABLES(18),
    /**
     * <code>GET_SUPER_TYPES = 19;</code>
     */
    GET_SUPER_TYPES(19),
    /**
     * <code>GET_TABLE_PRIVILEGES = 20;</code>
     */
    GET_TABLE_PRIVILEGES(20),
    /**
     * <code>GET_TABLES = 21;</code>
     */
    GET_TABLES(21),
    /**
     * <code>GET_TABLE_TYPES = 22;</code>
     */
    GET_TABLE_TYPES(22),
    /**
     * <code>GET_TYPE_INFO = 23;</code>
     */
    GET_TYPE_INFO(23),
    /**
     * <code>GET_UDTS = 24;</code>
     */
    GET_UDTS(24),
    /**
     * <code>GET_VERSION_COLUMNS = 25;</code>
     */
    GET_VERSION_COLUMNS(25),
    UNRECOGNIZED(-1),
    ;

    /**
     * <code>GET_ATTRIBUTES = 0;</code>
     */
    public static final int GET_ATTRIBUTES_VALUE = 0;
    /**
     * <code>GET_BEST_ROW_IDENTIFIER = 1;</code>
     */
    public static final int GET_BEST_ROW_IDENTIFIER_VALUE = 1;
    /**
     * <code>GET_CATALOGS = 2;</code>
     */
    public static final int GET_CATALOGS_VALUE = 2;
    /**
     * <code>GET_CLIENT_INFO_PROPERTIES = 3;</code>
     */
    public static final int GET_CLIENT_INFO_PROPERTIES_VALUE = 3;
    /**
     * <code>GET_COLUMN_PRIVILEGES = 4;</code>
     */
    public static final int GET_COLUMN_PRIVILEGES_VALUE = 4;
    /**
     * <code>GET_COLUMNS = 5;</code>
     */
    public static final int GET_COLUMNS_VALUE = 5;
    /**
     * <code>GET_CROSS_REFERENCE = 6;</code>
     */
    public static final int GET_CROSS_REFERENCE_VALUE = 6;
    /**
     * <code>GET_EXPORTED_KEYS = 7;</code>
     */
    public static final int GET_EXPORTED_KEYS_VALUE = 7;
    /**
     * <code>GET_FUNCTION_COLUMNS = 8;</code>
     */
    public static final int GET_FUNCTION_COLUMNS_VALUE = 8;
    /**
     * <code>GET_FUNCTIONS = 9;</code>
     */
    public static final int GET_FUNCTIONS_VALUE = 9;
    /**
     * <code>GET_IMPORTED_KEYS = 10;</code>
     */
    public static final int GET_IMPORTED_KEYS_VALUE = 10;
    /**
     * <code>GET_INDEX_INFO = 11;</code>
     */
    public static final int GET_INDEX_INFO_VALUE = 11;
    /**
     * <code>GET_PRIMARY_KEYS = 12;</code>
     */
    public static final int GET_PRIMARY_KEYS_VALUE = 12;
    /**
     * <code>GET_PROCEDURE_COLUMNS = 13;</code>
     */
    public static final int GET_PROCEDURE_COLUMNS_VALUE = 13;
    /**
     * <code>GET_PROCEDURES = 14;</code>
     */
    public static final int GET_PROCEDURES_VALUE = 14;
    /**
     * <code>GET_PSEUDO_COLUMNS = 15;</code>
     */
    public static final int GET_PSEUDO_COLUMNS_VALUE = 15;
    /**
     * <code>GET_SCHEMAS = 16;</code>
     */
    public static final int GET_SCHEMAS_VALUE = 16;
    /**
     * <code>GET_SCHEMAS_WITH_ARGS = 17;</code>
     */
    public static final int GET_SCHEMAS_WITH_ARGS_VALUE = 17;
    /**
     * <code>GET_SUPER_TABLES = 18;</code>
     */
    public static final int GET_SUPER_TABLES_VALUE = 18;
    /**
     * <code>GET_SUPER_TYPES = 19;</code>
     */
    public static final int GET_SUPER_TYPES_VALUE = 19;
    /**
     * <code>GET_TABLE_PRIVILEGES = 20;</code>
     */
    public static final int GET_TABLE_PRIVILEGES_VALUE = 20;
    /**
     * <code>GET_TABLES = 21;</code>
     */
    public static final int GET_TABLES_VALUE = 21;
    /**
     * <code>GET_TABLE_TYPES = 22;</code>
     */
    public static final int GET_TABLE_TYPES_VALUE = 22;
    /**
     * <code>GET_TYPE_INFO = 23;</code>
     */
    public static final int GET_TYPE_INFO_VALUE = 23;
    /**
     * <code>GET_UDTS = 24;</code>
     */
    public static final int GET_UDTS_VALUE = 24;
    /**
     * <code>GET_VERSION_COLUMNS = 25;</code>
     */
    public static final int GET_VERSION_COLUMNS_VALUE = 25;


    public final int getNumber() {
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        case 4: return GET_COLUMN_PRIVILEGES;
        case 5: return GET_COLUMNS;
        case 6: return GET_CROSS_REFERENCE;
        case 7: return GET_EXPORTED_KEYS;
        case 8: return GET_FUNCTION_COLUMNS;
        case 9: return GET_FUNCTIONS;
        case 10: return GET_IMPORTED_KEYS;
        case 11: return GET_INDEX_INFO;
        case 12: return GET_PRIMARY_KEYS;
        case 13: return GET_PROCEDURE_COLUMNS;
        case 14: return GET_PROCEDURES;
        case 15: return GET_PSEUDO_COLUMNS;
        case 16: return GET_SCHEMAS;
        case 17: return GET_SCHEMAS_WITH_ARGS;
        case 18: return GET_SUPER_TABLES;
        case 19: return GET_SUPER_TYPES;
        case 20: return GET_TABLE_PRIVILEGES;
        case 21: return GET_TABLES;
        case 22: return GET_TABLE_TYPES;
        case 23: return GET_TYPE_INFO;
        case 24: return GET_UDTS;
        case 25: return GET_VERSION_COLUMNS;
        default: return null;
      }
    }

    public static com.google.protobuf.Internal.EnumLiteMap<MetaDataOperation>
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    private static final com.google.protobuf.Internal.EnumLiteMap<
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    public final com.google.protobuf.Descriptors.EnumValueDescriptor
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    public final com.google.protobuf.Descriptors.EnumDescriptor
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    public static final com.google.protobuf.Descriptors.EnumDescriptor
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      return VALUES[desc.getIndex()];
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    private final int value;

    private MetaDataOperation(int value) {
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  /**
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    /**
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     */
    public static final int METADATA_VALUE = 1;


    public final int getNumber() {
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    /**
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    public static StateType valueOf(int value) {
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    public static StateType forNumber(int value) {
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    public static StateType valueOf(
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    // @@protoc_insertion_point(enum_scope:StateType)
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     * <pre>
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     *
     * <code>optional bool has_read_only = 8;</code>
     */
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  /**
   * <pre>
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   *
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     *
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      public org.apache.calcite.avatica.proto.Common.ConnectionProperties build() {
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        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
      }

      public org.apache.calcite.avatica.proto.Common.ConnectionProperties buildPartial() {
        org.apache.calcite.avatica.proto.Common.ConnectionProperties result = new org.apache.calcite.avatica.proto.Common.ConnectionProperties(this);
        result.isDirty_ = isDirty_;
        result.autoCommit_ = autoCommit_;
        result.hasAutoCommit_ = hasAutoCommit_;
        result.readOnly_ = readOnly_;
        result.hasReadOnly_ = hasReadOnly_;
        result.transactionIsolation_ = transactionIsolation_;
        result.catalog_ = catalog_;
        result.schema_ = schema_;
        onBuilt();
        return result;
      }

      public Builder clone() {
        return (Builder) super.clone();
      }
      public Builder setField(
          com.google.protobuf.Descriptors.FieldDescriptor field,
          Object value) {
        return (Builder) super.setField(field, value);
      }
      public Builder clearField(
          com.google.protobuf.Descriptors.FieldDescriptor field) {
        return (Builder) super.clearField(field);
      }
      public Builder clearOneof(
          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
        return (Builder) super.clearOneof(oneof);
      }
      public Builder setRepeatedField(
          com.google.protobuf.Descriptors.FieldDescriptor field,
          int index, Object value) {
        return (Builder) super.setRepeatedField(field, index, value);
      }
      public Builder addRepeatedField(
          com.google.protobuf.Descriptors.FieldDescriptor field,
          Object value) {
        return (Builder) super.addRepeatedField(field, value);
      }
      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof org.apache.calcite.avatica.proto.Common.ConnectionProperties) {
          return mergeFrom((org.apache.calcite.avatica.proto.Common.ConnectionProperties)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(org.apache.calcite.avatica.proto.Common.ConnectionProperties other) {
        if (other == org.apache.calcite.avatica.proto.Common.ConnectionProperties.getDefaultInstance()) return this;
        if (other.getIsDirty() != false) {
          setIsDirty(other.getIsDirty());
        }
        if (other.getAutoCommit() != false) {
          setAutoCommit(other.getAutoCommit());
        }
        if (other.getHasAutoCommit() != false) {
          setHasAutoCommit(other.getHasAutoCommit());
        }
        if (other.getReadOnly() != false) {
          setReadOnly(other.getReadOnly());
        }
        if (other.getHasReadOnly() != false) {
          setHasReadOnly(other.getHasReadOnly());
        }
        if (other.getTransactionIsolation() != 0) {
          setTransactionIsolation(other.getTransactionIsolation());
        }
        if (!other.getCatalog().isEmpty()) {
          catalog_ = other.catalog_;
          onChanged();
        }
        if (!other.getSchema().isEmpty()) {
          schema_ = other.schema_;
          onChanged();
        }
        onChanged();
        return this;
      }

      public final boolean isInitialized() {
        return true;
      }

      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        org.apache.calcite.avatica.proto.Common.ConnectionProperties parsedMessage = null;
        try {
          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          parsedMessage = (org.apache.calcite.avatica.proto.Common.ConnectionProperties) e.getUnfinishedMessage();
          throw e.unwrapIOException();
        } finally {
          if (parsedMessage != null) {
            mergeFrom(parsedMessage);
          }
        }
        return this;
      }

      private boolean isDirty_ ;
      /**
       * <code>optional bool is_dirty = 1;</code>
       */
      public boolean getIsDirty() {
        return isDirty_;
      }
      /**
       * <code>optional bool is_dirty = 1;</code>
       */
      public Builder setIsDirty(boolean value) {
        
        isDirty_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional bool is_dirty = 1;</code>
       */
      public Builder clearIsDirty() {
        
        isDirty_ = false;
        onChanged();
        return this;
      }

      private boolean autoCommit_ ;
      /**
       * <code>optional bool auto_commit = 2;</code>
       */
      public boolean getAutoCommit() {
        return autoCommit_;
      }
      /**
       * <code>optional bool auto_commit = 2;</code>
       */
      public Builder setAutoCommit(boolean value) {
        
        autoCommit_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional bool auto_commit = 2;</code>
       */
      public Builder clearAutoCommit() {
        
        autoCommit_ = false;
        onChanged();
        return this;
      }

      private boolean hasAutoCommit_ ;
      /**
       * <pre>
       * field is a Boolean, need to discern null and default value
       * </pre>
       *
       * <code>optional bool has_auto_commit = 7;</code>
       */
      public boolean getHasAutoCommit() {
        return hasAutoCommit_;
      }
      /**
       * <pre>
       * field is a Boolean, need to discern null and default value
       * </pre>
       *
       * <code>optional bool has_auto_commit = 7;</code>
       */
      public Builder setHasAutoCommit(boolean value) {
        
        hasAutoCommit_ = value;
        onChanged();
        return this;
      }
      /**
       * <pre>
       * field is a Boolean, need to discern null and default value
       * </pre>
       *
       * <code>optional bool has_auto_commit = 7;</code>
       */
      public Builder clearHasAutoCommit() {
        
        hasAutoCommit_ = false;
        onChanged();
        return this;
      }

      private boolean readOnly_ ;
      /**
       * <code>optional bool read_only = 3;</code>
       */
      public boolean getReadOnly() {
        return readOnly_;
      }
      /**
       * <code>optional bool read_only = 3;</code>
       */
      public Builder setReadOnly(boolean value) {
        
        readOnly_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional bool read_only = 3;</code>
       */
      public Builder clearReadOnly() {
        
        readOnly_ = false;
        onChanged();
        return this;
      }

      private boolean hasReadOnly_ ;
      /**
       * <pre>
       * field is a Boolean, need to discern null and default value
       * </pre>
       *
       * <code>optional bool has_read_only = 8;</code>
       */
      public boolean getHasReadOnly() {
        return hasReadOnly_;
      }
      /**
       * <pre>
       * field is a Boolean, need to discern null and default value
       * </pre>
       *
       * <code>optional bool has_read_only = 8;</code>
       */
      public Builder setHasReadOnly(boolean value) {
        
        hasReadOnly_ = value;
        onChanged();
        return this;
      }
      /**
       * <pre>
       * field is a Boolean, need to discern null and default value
       * </pre>
       *
       * <code>optional bool has_read_only = 8;</code>
       */
      public Builder clearHasReadOnly() {
        
        hasReadOnly_ = false;
        onChanged();
        return this;
      }

      private int transactionIsolation_ ;
      /**
       * <code>optional uint32 transaction_isolation = 4;</code>
       */
      public int getTransactionIsolation() {
        return transactionIsolation_;
      }
      /**
       * <code>optional uint32 transaction_isolation = 4;</code>
       */
      public Builder setTransactionIsolation(int value) {
        
        transactionIsolation_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional uint32 transaction_isolation = 4;</code>
       */
      public Builder clearTransactionIsolation() {
        
        transactionIsolation_ = 0;
        onChanged();
        return this;
      }

      private java.lang.Object catalog_ = "";
      /**
       * <code>optional string catalog = 5;</code>
       */
      public java.lang.String getCatalog() {
        java.lang.Object ref = catalog_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs =
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          catalog_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
      /**
       * <code>optional string catalog = 5;</code>
       */
      public com.google.protobuf.ByteString
          getCatalogBytes() {
        java.lang.Object ref = catalog_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          catalog_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * <code>optional string catalog = 5;</code>
       */
      public Builder setCatalog(
          java.lang.String value) {
        if (value == null) {
    throw new NullPointerException();
  }
  
        catalog_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional string catalog = 5;</code>
       */
      public Builder clearCatalog() {
        
        catalog_ = getDefaultInstance().getCatalog();
        onChanged();
        return this;
      }
      /**
       * <code>optional string catalog = 5;</code>
       */
      public Builder setCatalogBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  checkByteStringIsUtf8(value);
        
        catalog_ = value;
        onChanged();
        return this;
      }

      private java.lang.Object schema_ = "";
      /**
       * <code>optional string schema = 6;</code>
       */
      public java.lang.String getSchema() {
        java.lang.Object ref = schema_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs =
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          schema_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
      /**
       * <code>optional string schema = 6;</code>
       */
      public com.google.protobuf.ByteString
          getSchemaBytes() {
        java.lang.Object ref = schema_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          schema_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * <code>optional string schema = 6;</code>
       */
      public Builder setSchema(
          java.lang.String value) {
        if (value == null) {
    throw new NullPointerException();
  }
  
        schema_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional string schema = 6;</code>
       */
      public Builder clearSchema() {
        
        schema_ = getDefaultInstance().getSchema();
        onChanged();
        return this;
      }
      /**
       * <code>optional string schema = 6;</code>
       */
      public Builder setSchemaBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  checkByteStringIsUtf8(value);
        
        schema_ = value;
        onChanged();
        return this;
      }
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return this;
      }

      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return this;
      }


      // @@protoc_insertion_point(builder_scope:ConnectionProperties)
    }

    // @@protoc_insertion_point(class_scope:ConnectionProperties)
    private static final org.apache.calcite.avatica.proto.Common.ConnectionProperties DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new org.apache.calcite.avatica.proto.Common.ConnectionProperties();
    }

    public static org.apache.calcite.avatica.proto.Common.ConnectionProperties getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser<ConnectionProperties>
        PARSER = new com.google.protobuf.AbstractParser<ConnectionProperties>() {
      public ConnectionProperties parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
          return new ConnectionProperties(input, extensionRegistry);
      }
    };

    public static com.google.protobuf.Parser<ConnectionProperties> parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser<ConnectionProperties> getParserForType() {
      return PARSER;
    }

    public org.apache.calcite.avatica.proto.Common.ConnectionProperties getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface StatementHandleOrBuilder extends
      // @@protoc_insertion_point(interface_extends:StatementHandle)
      com.google.protobuf.MessageOrBuilder {

    /**
     * <code>optional string connection_id = 1;</code>
     */
    java.lang.String getConnectionId();
    /**
     * <code>optional string connection_id = 1;</code>
     */
    com.google.protobuf.ByteString
        getConnectionIdBytes();

    /**
     * <code>optional uint32 id = 2;</code>
     */
    int getId();

    /**
     * <code>optional .Signature signature = 3;</code>
     */
    boolean hasSignature();
    /**
     * <code>optional .Signature signature = 3;</code>
     */
    org.apache.calcite.avatica.proto.Common.Signature getSignature();
    /**
     * <code>optional .Signature signature = 3;</code>
     */
    org.apache.calcite.avatica.proto.Common.SignatureOrBuilder getSignatureOrBuilder();
  }
  /**
   * <pre>
   * Statement handle
   * </pre>
   *
   * Protobuf type {@code StatementHandle}
   */
  public  static final class StatementHandle extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:StatementHandle)
      StatementHandleOrBuilder {
    // Use StatementHandle.newBuilder() to construct.
    private StatementHandle(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
      super(builder);
    }
    private StatementHandle() {
      connectionId_ = "";
      id_ = 0;
    }

    @java.lang.Override
    public final com.google.protobuf.UnknownFieldSet
    getUnknownFields() {
      return com.google.protobuf.UnknownFieldSet.getDefaultInstance();
    }
    private StatementHandle(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      this();
      int mutable_bitField0_ = 0;
      try {
        boolean done = false;
        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            default: {
              if (!input.skipField(tag)) {
                done = true;
              }
              break;
            }
            case 10: {
              java.lang.String s = input.readStringRequireUtf8();

              connectionId_ = s;
              break;
            }
            case 16: {

              id_ = input.readUInt32();
              break;
            }
            case 26: {
              org.apache.calcite.avatica.proto.Common.Signature.Builder subBuilder = null;
              if (signature_ != null) {
                subBuilder = signature_.toBuilder();
              }
              signature_ = input.readMessage(org.apache.calcite.avatica.proto.Common.Signature.parser(), extensionRegistry);
              if (subBuilder != null) {
                subBuilder.mergeFrom(signature_);
                signature_ = subBuilder.buildPartial();
              }

              break;
            }
          }
        }
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.setUnfinishedMessage(this);
      } catch (java.io.IOException e) {
        throw new com.google.protobuf.InvalidProtocolBufferException(
            e).setUnfinishedMessage(this);
      } finally {
        makeExtensionsImmutable();
      }
    }
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return org.apache.calcite.avatica.proto.Common.internal_static_StatementHandle_descriptor;
    }

    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return org.apache.calcite.avatica.proto.Common.internal_static_StatementHandle_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              org.apache.calcite.avatica.proto.Common.StatementHandle.class, org.apache.calcite.avatica.proto.Common.StatementHandle.Builder.class);
    }

    public static final int CONNECTION_ID_FIELD_NUMBER = 1;
    private volatile java.lang.Object connectionId_;
    /**
     * <code>optional string connection_id = 1;</code>
     */
    public java.lang.String getConnectionId() {
      java.lang.Object ref = connectionId_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = 
            (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        connectionId_ = s;
        return s;
      }
    }
    /**
     * <code>optional string connection_id = 1;</code>
     */
    public com.google.protobuf.ByteString
        getConnectionIdBytes() {
      java.lang.Object ref = connectionId_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b = 
            com.google.protobuf.ByteString.copyFromUtf8(
                (java.lang.String) ref);
        connectionId_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }

    public static final int ID_FIELD_NUMBER = 2;
    private int id_;
    /**
     * <code>optional uint32 id = 2;</code>
     */
    public int getId() {
      return id_;
    }

    public static final int SIGNATURE_FIELD_NUMBER = 3;
    private org.apache.calcite.avatica.proto.Common.Signature signature_;
    /**
     * <code>optional .Signature signature = 3;</code>
     */
    public boolean hasSignature() {
      return signature_ != null;
    }
    /**
     * <code>optional .Signature signature = 3;</code>
     */
    public org.apache.calcite.avatica.proto.Common.Signature getSignature() {
      return signature_ == null ? org.apache.calcite.avatica.proto.Common.Signature.getDefaultInstance() : signature_;
    }
    /**
     * <code>optional .Signature signature = 3;</code>
     */
    public org.apache.calcite.avatica.proto.Common.SignatureOrBuilder getSignatureOrBuilder() {
      return getSignature();
    }

    private byte memoizedIsInitialized = -1;
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized == 1) return true;
      if (isInitialized == 0) return false;

      memoizedIsInitialized = 1;
      return true;
    }

    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      if (!getConnectionIdBytes().isEmpty()) {
        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, connectionId_);
      }
      if (id_ != 0) {
        output.writeUInt32(2, id_);
      }
      if (signature_ != null) {
        output.writeMessage(3, getSignature());
      }
    }

    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      if (!getConnectionIdBytes().isEmpty()) {
        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, connectionId_);
      }
      if (id_ != 0) {
        size += com.google.protobuf.CodedOutputStream
          .computeUInt32Size(2, id_);
      }
      if (signature_ != null) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(3, getSignature());
      }
      memoizedSize = size;
      return size;
    }

    private static final long serialVersionUID = 0L;
    @java.lang.Override
    public boolean equals(final java.lang.Object obj) {
      if (obj == this) {
       return true;
      }
      if (!(obj instanceof org.apache.calcite.avatica.proto.Common.StatementHandle)) {
        return super.equals(obj);
      }
      org.apache.calcite.avatica.proto.Common.StatementHandle other = (org.apache.calcite.avatica.proto.Common.StatementHandle) obj;

      boolean result = true;
      result = result && getConnectionId()
          .equals(other.getConnectionId());
      result = result && (getId()
          == other.getId());
      result = result && (hasSignature() == other.hasSignature());
      if (hasSignature()) {
        result = result && getSignature()
            .equals(other.getSignature());
      }
      return result;
    }

    @java.lang.Override
    public int hashCode() {
      if (memoizedHashCode != 0) {
        return memoizedHashCode;
      }
      int hash = 41;
      hash = (19 * hash) + getDescriptorForType().hashCode();
      hash = (37 * hash) + CONNECTION_ID_FIELD_NUMBER;
      hash = (53 * hash) + getConnectionId().hashCode();
      hash = (37 * hash) + ID_FIELD_NUMBER;
      hash = (53 * hash) + getId();
      if (hasSignature()) {
        hash = (37 * hash) + SIGNATURE_FIELD_NUMBER;
        hash = (53 * hash) + getSignature().hashCode();
      }
      hash = (29 * hash) + unknownFields.hashCode();
      memoizedHashCode = hash;
      return hash;
    }

    public static org.apache.calcite.avatica.proto.Common.StatementHandle parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.apache.calcite.avatica.proto.Common.StatementHandle parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.apache.calcite.avatica.proto.Common.StatementHandle parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.apache.calcite.avatica.proto.Common.StatementHandle parseFrom(
        byte[] data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.apache.calcite.avatica.proto.Common.StatementHandle parseFrom(java.io.InputStream input)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input);
    }
    public static org.apache.calcite.avatica.proto.Common.StatementHandle parseFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input, extensionRegistry);
    }
    public static org.apache.calcite.avatica.proto.Common.StatementHandle parseDelimitedFrom(java.io.InputStream input)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseDelimitedWithIOException(PARSER, input);
    }
    public static org.apache.calcite.avatica.proto.Common.StatementHandle parseDelimitedFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
    }
    public static org.apache.calcite.avatica.proto.Common.StatementHandle parseFrom(
        com.google.protobuf.CodedInputStream input)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input);
    }
    public static org.apache.calcite.avatica.proto.Common.StatementHandle parseFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3
          .parseWithIOException(PARSER, input, extensionRegistry);
    }

    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder() {
      return DEFAULT_INSTANCE.toBuilder();
    }
    public static Builder newBuilder(org.apache.calcite.avatica.proto.Common.StatementHandle prototype) {
      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
    }
    public Builder toBuilder() {
      return this == DEFAULT_INSTANCE
          ? new Builder() : new Builder().mergeFrom(this);
    }

    @java.lang.Override
    protected Builder newBuilderForType(
        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
      Builder builder = new Builder(parent);
      return builder;
    }
    /**
     * <pre>
     * Statement handle
     * </pre>
     *
     * Protobuf type {@code StatementHandle}
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
        // @@protoc_insertion_point(builder_implements:StatementHandle)
        org.apache.calcite.avatica.proto.Common.StatementHandleOrBuilder {
      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return org.apache.calcite.avatica.proto.Common.internal_static_StatementHandle_descriptor;
      }

      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return org.apache.calcite.avatica.proto.Common.internal_static_StatementHandle_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                org.apache.calcite.avatica.proto.Common.StatementHandle.class, org.apache.calcite.avatica.proto.Common.StatementHandle.Builder.class);
      }

      // Construct using org.apache.calcite.avatica.proto.Common.StatementHandle.newBuilder()
      private Builder() {
        maybeForceBuilderInitialization();
      }

      private Builder(
          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
        super(parent);
        maybeForceBuilderInitialization();
      }
      private void maybeForceBuilderInitialization() {
        if (com.google.protobuf.GeneratedMessageV3
                .alwaysUseFieldBuilders) {
        }
      }
      public Builder clear() {
        super.clear();
        connectionId_ = "";

        id_ = 0;

        if (signatureBuilder_ == null) {
          signature_ = null;
        } else {
          signature_ = null;
          signatureBuilder_ = null;
        }
        return this;
      }

      public com.google.protobuf.Descriptors.Descriptor
          getDescriptorForType() {
        return org.apache.calcite.avatica.proto.Common.internal_static_StatementHandle_descriptor;
      }

      public org.apache.calcite.avatica.proto.Common.StatementHandle getDefaultInstanceForType() {
        return org.apache.calcite.avatica.proto.Common.StatementHandle.getDefaultInstance();
      }

      public org.apache.calcite.avatica.proto.Common.StatementHandle build() {
        org.apache.calcite.avatica.proto.Common.StatementHandle result = buildPartial();
        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
      }

      public org.apache.calcite.avatica.proto.Common.StatementHandle buildPartial() {
        org.apache.calcite.avatica.proto.Common.StatementHandle result = new org.apache.calcite.avatica.proto.Common.StatementHandle(this);
        result.connectionId_ = connectionId_;
        result.id_ = id_;
        if (signatureBuilder_ == null) {
          result.signature_ = signature_;
        } else {
          result.signature_ = signatureBuilder_.build();
        }
        onBuilt();
        return result;
      }

      public Builder clone() {
        return (Builder) super.clone();
      }
      public Builder setField(
          com.google.protobuf.Descriptors.FieldDescriptor field,
          Object value) {
        return (Builder) super.setField(field, value);
      }
      public Builder clearField(
          com.google.protobuf.Descriptors.FieldDescriptor field) {
        return (Builder) super.clearField(field);
      }
      public Builder clearOneof(
          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
        return (Builder) super.clearOneof(oneof);
      }
      public Builder setRepeatedField(
          com.google.protobuf.Descriptors.FieldDescriptor field,
          int index, Object value) {
        return (Builder) super.setRepeatedField(field, index, value);
      }
      public Builder addRepeatedField(
          com.google.protobuf.Descriptors.FieldDescriptor field,
          Object value) {
        return (Builder) super.addRepeatedField(field, value);
      }
      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof org.apache.calcite.avatica.proto.Common.StatementHandle) {
          return mergeFrom((org.apache.calcite.avatica.proto.Common.StatementHandle)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(org.apache.calcite.avatica.proto.Common.StatementHandle other) {
        if (other == org.apache.calcite.avatica.proto.Common.StatementHandle.getDefaultInstance()) return this;
        if (!other.getConnectionId().isEmpty()) {
          connectionId_ = other.connectionId_;
          onChanged();
        }
        if (other.getId() != 0) {
          setId(other.getId());
        }
        if (other.hasSignature()) {
          mergeSignature(other.getSignature());
        }
        onChanged();
        return this;
      }

      public final boolean isInitialized() {
        return true;
      }

      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        org.apache.calcite.avatica.proto.Common.StatementHandle parsedMessage = null;
        try {
          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          parsedMessage = (org.apache.calcite.avatica.proto.Common.StatementHandle) e.getUnfinishedMessage();
          throw e.unwrapIOException();
        } finally {
          if (parsedMessage != null) {
            mergeFrom(parsedMessage);
          }
        }
        return this;
      }

      private java.lang.Object connectionId_ = "";
      /**
       * <code>optional string connection_id = 1;</code>
       */
      public java.lang.String getConnectionId() {
        java.lang.Object ref = connectionId_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs =
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          connectionId_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
      /**
       * <code>optional string connection_id = 1;</code>
       */
      public com.google.protobuf.ByteString
          getConnectionIdBytes() {
        java.lang.Object ref = connectionId_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          connectionId_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * <code>optional string connection_id = 1;</code>
       */
      public Builder setConnectionId(
          java.lang.String value) {
        if (value == null) {
    throw new NullPointerException();
  }
  
        connectionId_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional string connection_id = 1;</code>
       */
      public Builder clearConnectionId() {
        
        connectionId_ = getDefaultInstance().getConnectionId();
        onChanged();
        return this;
      }
      /**
       * <code>optional string connection_id = 1;</code>
       */
      public Builder setConnectionIdBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  checkByteStringIsUtf8(value);
        
        connectionId_ = value;
        onChanged();
        return this;
      }

      private int id_ ;
      /**
       * <code>optional uint32 id = 2;</code>
       */
      public int getId() {
        return id_;
      }
      /**
       * <code>optional uint32 id = 2;</code>
       */
      public Builder setId(int value) {
        
        id_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional uint32 id = 2;</code>
       */
      public Builder clearId() {
        
        id_ = 0;
        onChanged();
        return this;
      }

      private org.apache.calcite.avatica.proto.Common.Signature signature_ = null;
      private com.google.protobuf.SingleFieldBuilderV3<
          org.apache.calcite.avatica.proto.Common.Signature, org.apache.calcite.avatica.proto.Common.Signature.Builder, org.apache.calcite.avatica.proto.Common.SignatureOrBuilder> signatureBuilder_;
      /**
       * <code>optional .Signature signature = 3;</code>
       */
      public boolean hasSignature() {
        return signatureBuilder_ != null || signature_ != null;
      }
      /**
       * <code>optional .Signature signature = 3;</code>
       */
      public org.apache.calcite.avatica.proto.Common.Signature getSignature() {
        if (signatureBuilder_ == null) {
          return signature_ == null ? org.apache.calcite.avatica.proto.Common.Signature.getDefaultInstance() : signature_;
        } else {
          return signatureBuilder_.getMessage();
        }
      }
      /**
       * <code>optional .Signature signature = 3;</code>
       */
      public Builder setSignature(org.apache.calcite.avatica.proto.Common.Signature value) {
        if (signatureBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          signature_ = value;
          onChanged();
        } else {
          signatureBuilder_.setMessage(value);
        }

        return this;
      }
      /**
       * <code>optional .Signature signature = 3;</code>
       */
      public Builder setSignature(
          org.apache.calcite.avatica.proto.Common.Signature.Builder builderForValue) {
        if (signatureBuilder_ == null) {
          signature_ = builderForValue.build();
          onChanged();
        } else {
          signatureBuilder_.setMessage(builderForValue.build());
        }

        return this;
      }
      /**
       * <code>optional .Signature signature = 3;</code>
       */
      public Builder mergeSignature(org.apache.calcite.avatica.proto.Common.Signature value) {
        if (signatureBuilder_ == null) {
          if (signature_ != null) {
            signature_ =
              org.apache.calcite.avatica.proto.Common.Signature.newBuilder(signature_).mergeFrom(value).buildPartial();
          } else {
            signature_ = value;
          }
          onChanged();
        } else {
          signatureBuilder_.mergeFrom(value);
        }

        return this;
      }
      /**
       * <code>optional .Signature signature = 3;</code>
       */
      public Builder clearSignature() {
        if (signatureBuilder_ == null) {
          signature_ = null;
          onChanged();
        } else {
          signature_ = null;
          signatureBuilder_ = null;
        }

        return this;
      }
      /**
       * <code>optional .Signature signature = 3;</code>
       */
      public org.apache.calcite.avatica.proto.Common.Signature.Builder getSignatureBuilder() {
        
        onChanged();
        return getSignatureFieldBuilder().getBuilder();
      }
      /**
       * <code>optional .Signature signature = 3;</code>
       */
      public org.apache.calcite.avatica.proto.Common.SignatureOrBuilder getSignatureOrBuilder() {
        if (signatureBuilder_ != null) {
          return signatureBuilder_.getMessageOrBuilder();
        } else {
          return signature_ == null ?
              org.apache.calcite.avatica.proto.Common.Signature.getDefaultInstance() : signature_;
        }
      }
      /**
       * <code>optional .Signature signature = 3;</code>
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          org.apache.calcite.avatica.proto.Common.Signature, org.apache.calcite.avatica.proto.Common.Signature.Builder, org.apache.calcite.avatica.proto.Common.SignatureOrBuilder> 
          getSignatureFieldBuilder() {
        if (signatureBuilder_ == null) {
          signatureBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              org.apache.calcite.avatica.proto.Common.Signature, org.apache.calcite.avatica.proto.Common.Signature.Builder, org.apache.calcite.avatica.proto.Common.SignatureOrBuilder>(
                  getSignature(),
                  getParentForChildren(),
                  isClean());
          signature_ = null;
        }
        return signatureBuilder_;
      }
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return this;
      }

      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return this;
      }


      // @@protoc_insertion_point(builder_scope:StatementHandle)
    }

    // @@protoc_insertion_point(class_scope:StatementHandle)
    private static final org.apache.calcite.avatica.proto.Common.StatementHandle DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new org.apache.calcite.avatica.proto.Common.StatementHandle();
    }

    public static org.apache.calcite.avatica.proto.Common.StatementHandle getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser<StatementHandle>
        PARSER = new com.google.protobuf.AbstractParser<StatementHandle>() {
      public StatementHandle parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
          return new StatementHandle(input, extensionRegistry);
      }
    };

    public static com.google.protobuf.Parser<StatementHandle> parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser<StatementHandle> getParserForType() {
      return PARSER;
    }

    public org.apache.calcite.avatica.proto.Common.StatementHandle getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface SignatureOrBuilder extends
      // @@protoc_insertion_point(interface_extends:Signature)
      com.google.protobuf.MessageOrBuilder {

    /**
     * <code>repeated .ColumnMetaData columns = 1;</code>
     */
    java.util.List<org.apache.calcite.avatica.proto.Common.ColumnMetaData> 
        getColumnsList();
    /**
     * <code>repeated .ColumnMetaData columns = 1;</code>
     */
    org.apache.calcite.avatica.proto.Common.ColumnMetaData getColumns(int index);
    /**
     * <code>repeated .ColumnMetaData columns = 1;</code>
     */
    int getColumnsCount();
    /**
     * <code>repeated .ColumnMetaData columns = 1;</code>
     */
    java.util.List<? extends org.apache.calcite.avatica.proto.Common.ColumnMetaDataOrBuilder> 
        getColumnsOrBuilderList();
    /**
     * <code>repeated .ColumnMetaData columns = 1;</code>
     */
    org.apache.calcite.avatica.proto.Common.ColumnMetaDataOrBuilder getColumnsOrBuilder(
        int index);

    /**
     * <code>optional string sql = 2;</code>
     */
    java.lang.String getSql();
    /**
     * <code>optional string sql = 2;</code>
     */
    com.google.protobuf.ByteString
        getSqlBytes();

    /**
     * <code>repeated .AvaticaParameter parameters = 3;</code>
     */
    java.util.List<org.apache.calcite.avatica.proto.Common.AvaticaParameter> 
        getParametersList();
    /**
     * <code>repeated .AvaticaParameter parameters = 3;</code>
     */
    org.apache.calcite.avatica.proto.Common.AvaticaParameter getParameters(int index);
    /**
     * <code>repeated .AvaticaParameter parameters = 3;</code>
     */
    int getParametersCount();
    /**
     * <code>repeated .AvaticaParameter parameters = 3;</code>
     */
    java.util.List<? extends org.apache.calcite.avatica.proto.Common.AvaticaParameterOrBuilder> 
        getParametersOrBuilderList();
    /**
     * <code>repeated .AvaticaParameter parameters = 3;</code>
     */
    org.apache.calcite.avatica.proto.Common.AvaticaParameterOrBuilder getParametersOrBuilder(
        int index);

    /**
     * <code>optional .CursorFactory cursor_factory = 4;</code>
     */
    boolean hasCursorFactory();
    /**
     * <code>optional .CursorFactory cursor_factory = 4;</code>
     */
    org.apache.calcite.avatica.proto.Common.CursorFactory getCursorFactory();
    /**
     * <code>optional .CursorFactory cursor_factory = 4;</code>
     */
    org.apache.calcite.avatica.proto.Common.CursorFactoryOrBuilder getCursorFactoryOrBuilder();

    /**
     * <code>optional .StatementType statementType = 5;</code>
     */
    int getStatementTypeValue();
    /**
     * <code>optional .StatementType statementType = 5;</code>
     */
    org.apache.calcite.avatica.proto.Common.StatementType getStatementType();
  }
  /**
   * <pre>
   * Results of preparing a statement
   * </pre>
   *
   * Protobuf type {@code Signature}
   */
  public  static final class Signature extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:Signature)
      SignatureOrBuilder {
    // Use Signature.newBuilder() to construct.
    private Signature(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
      super(builder);
    }
    private Signature() {
      columns_ = java.util.Collections.emptyList();
      sql_ = "";
      parameters_ = java.util.Collections.emptyList();
      statementType_ = 0;
    }

    @java.lang.Override
    public final com.google.protobuf.UnknownFieldSet
    getUnknownFields() {
      return com.google.protobuf.UnknownFieldSet.getDefaultInstance();
    }
    private Signature(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      this();
      int mutable_bitField0_ = 0;
      try {
        boolean done = false;
        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            default: {
              if (!input.skipField(tag)) {
                done = true;
              }
              break;
            }
            case 10: {
              if (!((mutable_bitField0_ & 0x00000001) == 0x00000001)) {
                columns_ = new java.util.ArrayList<org.apache.calcite.avatica.proto.Common.ColumnMetaData>();
                mutable_bitField0_ |= 0x00000001;
              }
              columns_.add(
                  input.readMessage(org.apache.calcite.avatica.proto.Common.ColumnMetaData.parser(), extensionRegistry));
              break;
            }
            case 18: {
              java.lang.String s = input.readStringRequireUtf8();

              sql_ = s;
              break;
            }
            case 26: {
              if (!((mutable_bitField0_ & 0x00000004) == 0x00000004)) {
                parameters_ = new java.util.ArrayList<org.apache.calcite.avatica.proto.Common.AvaticaParameter>();
                mutable_bitField0_ |= 0x00000004;
              }
              parameters_.add(
                  input.readMessage(org.apache.calcite.avatica.proto.Common.AvaticaParameter.parser(), extensionRegistry));
              break;
            }
            case 34: {
              org.apache.calcite.avatica.proto.Common.CursorFactory.Builder subBuilder = null;
              if (cursorFactory_ != null) {
                subBuilder = cursorFactory_.toBuilder();
              }
              cursorFactory_ = input.readMessage(org.apache.calcite.avatica.proto.Common.CursorFactory.parser(), extensionRegistry);
              if (subBuilder != null) {
                subBuilder.mergeFrom(cursorFactory_);
                cursorFactory_ = subBuilder.buildPartial();
              }

              break;
            }
            case 40: {
              int rawValue = input.readEnum();

              statementType_ = rawValue;
              break;
            }
          }
        }
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.setUnfinishedMessage(this);
      } catch (java.io.IOException e) {
        throw new com.google.protobuf.InvalidProtocolBufferException(
            e).setUnfinishedMessage(this);
      } finally {
        if (((mutable_bitField0_ & 0x00000001) == 0x00000001)) {
          columns_ = java.util.Collections.unmodifiableList(columns_);
        }
        if (((mutable_bitField0_ & 0x00000004) == 0x00000004)) {
          parameters_ = java.util.Collections.unmodifiableList(parameters_);
        }
        makeExtensionsImmutable();
      }
    }
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return org.apache.calcite.avatica.proto.Common.internal_static_Signature_descriptor;
    }

    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return org.apache.calcite.avatica.proto.Common.internal_static_Signature_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              org.apache.calcite.avatica.proto.Common.Signature.class, org.apache.calcite.avatica.proto.Common.Signature.Builder.class);
    }

    private int bitField0_;
    public static final int COLUMNS_FIELD_NUMBER = 1;
    private java.util.List<org.apache.calcite.avatica.proto.Common.ColumnMetaData> columns_;
    /**
     * <code>repeated .ColumnMetaData columns = 1;</code>
     */
    public java.util.List<org.apache.calcite.avatica.proto.Common.ColumnMetaData> getColumnsList() {
      return columns_;
    }
    /**
     * <code>repeated .ColumnMetaData columns = 1;</code>
     */
    public java.util.List<? extends org.apache.calcite.avatica.proto.Common.ColumnMetaDataOrBuilder> 
        getColumnsOrBuilderList() {
      return columns_;
    }
    /**
     * <code>repeated .ColumnMetaData columns = 1;</code>
     */
    public int getColumnsCount() {
      return columns_.size();
    }
    /**
     * <code>repeated .ColumnMetaData columns = 1;</code>
     */
    public org.apache.calcite.avatica.proto.Common.ColumnMetaData getColumns(int index) {
      return columns_.get(index);
    }
    /**
     * <code>repeated .ColumnMetaData columns = 1;</code>
     */
    public org.apache.calcite.avatica.proto.Common.ColumnMetaDataOrBuilder getColumnsOrBuilder(
        int index) {
      return columns_.get(index);
    }

    public static final int SQL_FIELD_NUMBER = 2;
    private volatile java.lang.Object sql_;
    /**
     * <code>optional string sql = 2;</code>
     */
    public java.lang.String getSql() {
      java.lang.Object ref = sql_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = 
            (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        sql_ = s;
        return s;
      }
    }
    /**
     * <code>optional string sql = 2;</code>
     */
    public com.google.protobuf.ByteString
        getSqlBytes() {
      java.lang.Object ref = sql_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b = 
            com.google.protobuf.ByteString.copyFromUtf8(
                (java.lang.String) ref);
        sql_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }

    public static final int PARAMETERS_FIELD_NUMBER = 3;
    private java.util.List<org.apache.calcite.avatica.proto.Common.AvaticaParameter> parameters_;
    /**
     * <code>repeated .AvaticaParameter parameters = 3;</code>
     */
    public java.util.List<org.apache.calcite.avatica.proto.Common.AvaticaParameter> getParametersList() {
      return parameters_;
    }
    /**
     * <code>repeated .AvaticaParameter parameters = 3;</code>
     */
    public java.util.List<? extends org.apache.calcite.avatica.proto.Common.AvaticaParameterOrBuilder> 
        getParametersOrBuilderList() {
      return parameters_;
    }
    /**
     * <code>repeated .AvaticaParameter parameters = 3;</code>
     */
    public int getParametersCount() {
      return parameters_.size();
    }
    /**
     * <code>repeated .AvaticaParameter parameters = 3;</code>
     */
    public org.apache.calcite.avatica.proto.Common.AvaticaParameter getParameters(int index) {
      return parameters_.get(index);
    }
    /**
     * <code>repeated .AvaticaParameter parameters = 3;</code>
     */
    public org.apache.calcite.avatica.proto.Common.AvaticaParameterOrBuilder getParametersOrBuilder(
        int index) {
      return parameters_.get(index);
    }

    public static final int CURSOR_FACTORY_FIELD_NUMBER = 4;
    private org.apache.calcite.avatica.proto.Common.CursorFactory cursorFactory_;
    /**
     * <code>optional .CursorFactory cursor_factory = 4;</code>
     */
    public boolean hasCursorFactory() {
      return cursorFactory_ != null;
    }
    /**
     * <code>optional .CursorFactory cursor_factory = 4;</code>
     */
    public org.apache.calcite.avatica.proto.Common.CursorFactory getCursorFactory() {
      return cursorFactory_ == null ? org.apache.calcite.avatica.proto.Common.CursorFactory.getDefaultInstance() : cursorFactory_;
    }
    /**
     * <code>optional .CursorFactory cursor_factory = 4;</code>
     */
    public org.apache.calcite.avatica.proto.Common.CursorFactoryOrBuilder getCursorFactoryOrBuilder() {
      return getCursorFactory();
    }

    public static final int STATEMENTTYPE_FIELD_NUMBER = 5;
    private int statementType_;
    /**
     * <code>optional .StatementType statementType = 5;</code>
     */
    public int getStatementTypeValue() {
      return statementType_;
    }
    /**
     * <code>optional .StatementType statementType = 5;</code>
     */
    public org.apache.calcite.avatica.proto.Common.StatementType getStatementType() {
      org.apache.calcite.avatica.proto.Common.StatementType result = org.apache.calcite.avatica.proto.Common.StatementType.valueOf(statementType_);
      return result == null ? org.apache.calcite.avatica.proto.Common.StatementType.UNRECOGNIZED : result;
    }

    private byte memoizedIsInitialized = -1;
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized == 1) return true;
      if (isInitialized == 0) return false;

      memoizedIsInitialized = 1;
      return true;
    }

    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      for (int i = 0; i < columns_.size(); i++) {
        output.writeMessage(1, columns_.get(i));
      }
      if (!getSqlBytes().isEmpty()) {
        com.google.protobuf.GeneratedMessageV3.writeString(output, 2, sql_);
      }
      for (int i = 0; i < parameters_.size(); i++) {
        output.writeMessage(3, parameters_.get(i));
      }
      if (cursorFactory_ != null) {
        output.writeMessage(4, getCursorFactory());
      }
      if (statementType_ != org.apache.calcite.avatica.proto.Common.StatementType.SELECT.getNumber()) {
        output.writeEnum(5, statementType_);
      }
    }

    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      for (int i = 0; i < columns_.size(); i++) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(1, columns_.get(i));
      }
      if (!getSqlBytes().isEmpty()) {
        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, sql_);
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    public static org.apache.calcite.avatica.proto.Common.Signature parseFrom(
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    public static org.apache.calcite.avatica.proto.Common.Signature parseFrom(
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    public static org.apache.calcite.avatica.proto.Common.Signature parseDelimitedFrom(java.io.InputStream input)
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    public static org.apache.calcite.avatica.proto.Common.Signature parseFrom(
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      return com.google.protobuf.GeneratedMessageV3
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    public static org.apache.calcite.avatica.proto.Common.Signature parseFrom(
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      return com.google.protobuf.GeneratedMessageV3
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    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder() {
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    public static Builder newBuilder(org.apache.calcite.avatica.proto.Common.Signature prototype) {
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    @java.lang.Override
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    /**
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      public Builder setField(
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      public Builder clearField(
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      public Builder setRepeatedField(
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      public Builder addRepeatedField(
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        return (Builder) super.addRepeatedField(field, value);
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      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof org.apache.calcite.avatica.proto.Common.Signature) {
          return mergeFrom((org.apache.calcite.avatica.proto.Common.Signature)other);
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      public Builder mergeFrom(org.apache.calcite.avatica.proto.Common.Signature other) {
        if (other == org.apache.calcite.avatica.proto.Common.Signature.getDefaultInstance()) return this;
        if (columnsBuilder_ == null) {
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            if (columns_.isEmpty()) {
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            onChanged();
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              parameters_ = other.parameters_;
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        if (other.hasCursorFactory()) {
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        if (other.statementType_ != 0) {
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        onChanged();
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      public final boolean isInitialized() {
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      public Builder mergeFrom(
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          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        org.apache.calcite.avatica.proto.Common.Signature parsedMessage = null;
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        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          parsedMessage = (org.apache.calcite.avatica.proto.Common.Signature) e.getUnfinishedMessage();
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            mergeFrom(parsedMessage);
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      private int bitField0_;

      private java.util.List<org.apache.calcite.avatica.proto.Common.ColumnMetaData> columns_ =
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        } else {
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      /**
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      public org.apache.calcite.avatica.proto.Common.ColumnMetaData getColumns(int index) {
        if (columnsBuilder_ == null) {
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        } else {
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      /**
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          if (value == null) {
            throw new NullPointerException();
          }
          ensureColumnsIsMutable();
          columns_.set(index, value);
          onChanged();
        } else {
          columnsBuilder_.setMessage(index, value);
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        return this;
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      /**
       * <code>repeated .ColumnMetaData columns = 1;</code>
       */
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        if (columnsBuilder_ == null) {
          ensureColumnsIsMutable();
          columns_.set(index, builderForValue.build());
          onChanged();
        } else {
          columnsBuilder_.setMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * <code>repeated .ColumnMetaData columns = 1;</code>
       */
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        if (columnsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureColumnsIsMutable();
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          onChanged();
        } else {
          columnsBuilder_.addMessage(value);
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      /**
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       */
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        if (columnsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
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        } else {
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       */
      public Builder addColumns(
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          columns_.add(builderForValue.build());
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        if (columnsBuilder_ == null) {
          ensureColumnsIsMutable();
          columns_.add(index, builderForValue.build());
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        } else {
          columnsBuilder_.addMessage(index, builderForValue.build());
        }
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      /**
       * <code>repeated .ColumnMetaData columns = 1;</code>
       */
      public Builder addAllColumns(
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        if (columnsBuilder_ == null) {
          ensureColumnsIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
              values, columns_);
          onChanged();
        } else {
          columnsBuilder_.addAllMessages(values);
        }
        return this;
      }
      /**
       * <code>repeated .ColumnMetaData columns = 1;</code>
       */
      public Builder clearColumns() {
        if (columnsBuilder_ == null) {
          columns_ = java.util.Collections.emptyList();
          bitField0_ = (bitField0_ & ~0x00000001);
          onChanged();
        } else {
          columnsBuilder_.clear();
        }
        return this;
      }
      /**
       * <code>repeated .ColumnMetaData columns = 1;</code>
       */
      public Builder removeColumns(int index) {
        if (columnsBuilder_ == null) {
          ensureColumnsIsMutable();
          columns_.remove(index);
          onChanged();
        } else {
          columnsBuilder_.remove(index);
        }
        return this;
      }
      /**
       * <code>repeated .ColumnMetaData columns = 1;</code>
       */
      public org.apache.calcite.avatica.proto.Common.ColumnMetaData.Builder getColumnsBuilder(
          int index) {
        return getColumnsFieldBuilder().getBuilder(index);
      }
      /**
       * <code>repeated .ColumnMetaData columns = 1;</code>
       */
      public org.apache.calcite.avatica.proto.Common.ColumnMetaDataOrBuilder getColumnsOrBuilder(
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          return columns_.get(index);  } else {
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       */
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       */
      public java.util.List<org.apache.calcite.avatica.proto.Common.ColumnMetaData.Builder> 
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                  columns_,
                  ((bitField0_ & 0x00000001) == 0x00000001),
                  getParentForChildren(),
                  isClean());
          columns_ = null;
        }
        return columnsBuilder_;
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      /**
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       */
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        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs =
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          java.lang.String s = bs.toStringUtf8();
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          return s;
        } else {
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        }
      }
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       */
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          com.google.protobuf.ByteString b = 
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          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * <code>optional string sql = 2;</code>
       */
      public Builder setSql(
          java.lang.String value) {
        if (value == null) {
    throw new NullPointerException();
  }
  
        sql_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional string sql = 2;</code>
       */
      public Builder clearSql() {
        
        sql_ = getDefaultInstance().getSql();
        onChanged();
        return this;
      }
      /**
       * <code>optional string sql = 2;</code>
       */
      public Builder setSqlBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  checkByteStringIsUtf8(value);
        
        sql_ = value;
        onChanged();
        return this;
      }

      private java.util.List<org.apache.calcite.avatica.proto.Common.AvaticaParameter> parameters_ =
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      private void ensureParametersIsMutable() {
        if (!((bitField0_ & 0x00000004) == 0x00000004)) {
          parameters_ = new java.util.ArrayList<org.apache.calcite.avatica.proto.Common.AvaticaParameter>(parameters_);
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      private com.google.protobuf.RepeatedFieldBuilderV3<
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      /**
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      /**
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          int index, org.apache.calcite.avatica.proto.Common.AvaticaParameter value) {
        if (parametersBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureParametersIsMutable();
          parameters_.set(index, value);
          onChanged();
        } else {
          parametersBuilder_.setMessage(index, value);
        }
        return this;
      }
      /**
       * <code>repeated .AvaticaParameter parameters = 3;</code>
       */
      public Builder setParameters(
          int index, org.apache.calcite.avatica.proto.Common.AvaticaParameter.Builder builderForValue) {
        if (parametersBuilder_ == null) {
          ensureParametersIsMutable();
          parameters_.set(index, builderForValue.build());
          onChanged();
        } else {
          parametersBuilder_.setMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * <code>repeated .AvaticaParameter parameters = 3;</code>
       */
      public Builder addParameters(org.apache.calcite.avatica.proto.Common.AvaticaParameter value) {
        if (parametersBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureParametersIsMutable();
          parameters_.add(value);
          onChanged();
        } else {
          parametersBuilder_.addMessage(value);
        }
        return this;
      }
      /**
       * <code>repeated .AvaticaParameter parameters = 3;</code>
       */
      public Builder addParameters(
          int index, org.apache.calcite.avatica.proto.Common.AvaticaParameter value) {
        if (parametersBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureParametersIsMutable();
          parameters_.add(index, value);
          onChanged();
        } else {
          parametersBuilder_.addMessage(index, value);
        }
        return this;
      }
      /**
       * <code>repeated .AvaticaParameter parameters = 3;</code>
       */
      public Builder addParameters(
          org.apache.calcite.avatica.proto.Common.AvaticaParameter.Builder builderForValue) {
        if (parametersBuilder_ == null) {
          ensureParametersIsMutable();
          parameters_.add(builderForValue.build());
          onChanged();
        } else {
          parametersBuilder_.addMessage(builderForValue.build());
        }
        return this;
      }
      /**
       * <code>repeated .AvaticaParameter parameters = 3;</code>
       */
      public Builder addParameters(
          int index, org.apache.calcite.avatica.proto.Common.AvaticaParameter.Builder builderForValue) {
        if (parametersBuilder_ == null) {
          ensureParametersIsMutable();
          parameters_.add(index, builderForValue.build());
          onChanged();
        } else {
          parametersBuilder_.addMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * <code>repeated .AvaticaParameter parameters = 3;</code>
       */
      public Builder addAllParameters(
          java.lang.Iterable<? extends org.apache.calcite.avatica.proto.Common.AvaticaParameter> values) {
        if (parametersBuilder_ == null) {
          ensureParametersIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
              values, parameters_);
          onChanged();
        } else {
          parametersBuilder_.addAllMessages(values);
        }
        return this;
      }
      /**
       * <code>repeated .AvaticaParameter parameters = 3;</code>
       */
      public Builder clearParameters() {
        if (parametersBuilder_ == null) {
          parameters_ = java.util.Collections.emptyList();
          bitField0_ = (bitField0_ & ~0x00000004);
          onChanged();
        } else {
          parametersBuilder_.clear();
        }
        return this;
      }
      /**
       * <code>repeated .AvaticaParameter parameters = 3;</code>
       */
      public Builder removeParameters(int index) {
        if (parametersBuilder_ == null) {
          ensureParametersIsMutable();
          parameters_.remove(index);
          onChanged();
        } else {
          parametersBuilder_.remove(index);
        }
        return this;
      }
      /**
       * <code>repeated .AvaticaParameter parameters = 3;</code>
       */
      public org.apache.calcite.avatica.proto.Common.AvaticaParameter.Builder getParametersBuilder(
          int index) {
        return getParametersFieldBuilder().getBuilder(index);
      }
      /**
       * <code>repeated .AvaticaParameter parameters = 3;</code>
       */
      public org.apache.calcite.avatica.proto.Common.AvaticaParameterOrBuilder getParametersOrBuilder(
          int index) {
        if (parametersBuilder_ == null) {
          return parameters_.get(index);  } else {
          return parametersBuilder_.getMessageOrBuilder(index);
        }
      }
      /**
       * <code>repeated .AvaticaParameter parameters = 3;</code>
       */
      public java.util.List<? extends org.apache.calcite.avatica.proto.Common.AvaticaParameterOrBuilder> 
           getParametersOrBuilderList() {
        if (parametersBuilder_ != null) {
          return parametersBuilder_.getMessageOrBuilderList();
        } else {
          return java.util.Collections.unmodifiableList(parameters_);
        }
      }
      /**
       * <code>repeated .AvaticaParameter parameters = 3;</code>
       */
      public org.apache.calcite.avatica.proto.Common.AvaticaParameter.Builder addParametersBuilder() {
        return getParametersFieldBuilder().addBuilder(
            org.apache.calcite.avatica.proto.Common.AvaticaParameter.getDefaultInstance());
      }
      /**
       * <code>repeated .AvaticaParameter parameters = 3;</code>
       */
      public org.apache.calcite.avatica.proto.Common.AvaticaParameter.Builder addParametersBuilder(
          int index) {
        return getParametersFieldBuilder().addBuilder(
            index, org.apache.calcite.avatica.proto.Common.AvaticaParameter.getDefaultInstance());
      }
      /**
       * <code>repeated .AvaticaParameter parameters = 3;</code>
       */
      public java.util.List<org.apache.calcite.avatica.proto.Common.AvaticaParameter.Builder> 
           getParametersBuilderList() {
        return getParametersFieldBuilder().getBuilderList();
      }
      private com.google.protobuf.RepeatedFieldBuilderV3<
          org.apache.calcite.avatica.proto.Common.AvaticaParameter, org.apache.calcite.avatica.proto.Common.AvaticaParameter.Builder, org.apache.calcite.avatica.proto.Common.AvaticaParameterOrBuilder> 
          getParametersFieldBuilder() {
        if (parametersBuilder_ == null) {
          parametersBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
              org.apache.calcite.avatica.proto.Common.AvaticaParameter, org.apache.calcite.avatica.proto.Common.AvaticaParameter.Builder, org.apache.calcite.avatica.proto.Common.AvaticaParameterOrBuilder>(
                  parameters_,
                  ((bitField0_ & 0x00000004) == 0x00000004),
                  getParentForChildren(),
                  isClean());
          parameters_ = null;
        }
        return parametersBuilder_;
      }

      private org.apache.calcite.avatica.proto.Common.CursorFactory cursorFactory_ = null;
      private com.google.protobuf.SingleFieldBuilderV3<
          org.apache.calcite.avatica.proto.Common.CursorFactory, org.apache.calcite.avatica.proto.Common.CursorFactory.Builder, org.apache.calcite.avatica.proto.Common.CursorFactoryOrBuilder> cursorFactoryBuilder_;
      /**
       * <code>optional .CursorFactory cursor_factory = 4;</code>
       */
      public boolean hasCursorFactory() {
        return cursorFactoryBuilder_ != null || cursorFactory_ != null;
      }
      /**
       * <code>optional .CursorFactory cursor_factory = 4;</code>
       */
      public org.apache.calcite.avatica.proto.Common.CursorFactory getCursorFactory() {
        if (cursorFactoryBuilder_ == null) {
          return cursorFactory_ == null ? org.apache.calcite.avatica.proto.Common.CursorFactory.getDefaultInstance() : cursorFactory_;
        } else {
          return cursorFactoryBuilder_.getMessage();
        }
      }
      /**
       * <code>optional .CursorFactory cursor_factory = 4;</code>
       */
      public Builder setCursorFactory(org.apache.calcite.avatica.proto.Common.CursorFactory value) {
        if (cursorFactoryBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          cursorFactory_ = value;
          onChanged();
        } else {
          cursorFactoryBuilder_.setMessage(value);
        }

        return this;
      }
      /**
       * <code>optional .CursorFactory cursor_factory = 4;</code>
       */
      public Builder setCursorFactory(
          org.apache.calcite.avatica.proto.Common.CursorFactory.Builder builderForValue) {
        if (cursorFactoryBuilder_ == null) {
          cursorFactory_ = builderForValue.build();
          onChanged();
        } else {
          cursorFactoryBuilder_.setMessage(builderForValue.build());
        }

        return this;
      }
      /**
       * <code>optional .CursorFactory cursor_factory = 4;</code>
       */
      public Builder mergeCursorFactory(org.apache.calcite.avatica.proto.Common.CursorFactory value) {
        if (cursorFactoryBuilder_ == null) {
          if (cursorFactory_ != null) {
            cursorFactory_ =
              org.apache.calcite.avatica.proto.Common.CursorFactory.newBuilder(cursorFactory_).mergeFrom(value).buildPartial();
          } else {
            cursorFactory_ = value;
          }
          onChanged();
        } else {
          cursorFactoryBuilder_.mergeFrom(value);
        }

        return this;
      }
      /**
       * <code>optional .CursorFactory cursor_factory = 4;</code>
       */
      public Builder clearCursorFactory() {
        if (cursorFactoryBuilder_ == null) {
          cursorFactory_ = null;
          onChanged();
        } else {
          cursorFactory_ = null;
          cursorFactoryBuilder_ = null;
        }

        return this;
      }
      /**
       * <code>optional .CursorFactory cursor_factory = 4;</code>
       */
      public org.apache.calcite.avatica.proto.Common.CursorFactory.Builder getCursorFactoryBuilder() {
        
        onChanged();
        return getCursorFactoryFieldBuilder().getBuilder();
      }
      /**
       * <code>optional .CursorFactory cursor_factory = 4;</code>
       */
      public org.apache.calcite.avatica.proto.Common.CursorFactoryOrBuilder getCursorFactoryOrBuilder() {
        if (cursorFactoryBuilder_ != null) {
          return cursorFactoryBuilder_.getMessageOrBuilder();
        } else {
          return cursorFactory_ == null ?
              org.apache.calcite.avatica.proto.Common.CursorFactory.getDefaultInstance() : cursorFactory_;
        }
      }
      /**
       * <code>optional .CursorFactory cursor_factory = 4;</code>
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          org.apache.calcite.avatica.proto.Common.CursorFactory, org.apache.calcite.avatica.proto.Common.CursorFactory.Builder, org.apache.calcite.avatica.proto.Common.CursorFactoryOrBuilder> 
          getCursorFactoryFieldBuilder() {
        if (cursorFactoryBuilder_ == null) {
          cursorFactoryBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              org.apache.calcite.avatica.proto.Common.CursorFactory, org.apache.calcite.avatica.proto.Common.CursorFactory.Builder, org.apache.calcite.avatica.proto.Common.CursorFactoryOrBuilder>(
                  getCursorFactory(),
                  getParentForChildren(),
                  isClean());
          cursorFactory_ = null;
        }
        return cursorFactoryBuilder_;
      }

      private int statementType_ = 0;
      /**
       * <code>optional .StatementType statementType = 5;</code>
       */
      public int getStatementTypeValue() {
        return statementType_;
      }
      /**
       * <code>optional .StatementType statementType = 5;</code>
       */
      public Builder setStatementTypeValue(int value) {
        statementType_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional .StatementType statementType = 5;</code>
       */
      public org.apache.calcite.avatica.proto.Common.StatementType getStatementType() {
        org.apache.calcite.avatica.proto.Common.StatementType result = org.apache.calcite.avatica.proto.Common.StatementType.valueOf(statementType_);
        return result == null ? org.apache.calcite.avatica.proto.Common.StatementType.UNRECOGNIZED : result;
      }
      /**
       * <code>optional .StatementType statementType = 5;</code>
       */
      public Builder setStatementType(org.apache.calcite.avatica.proto.Common.StatementType value) {
        if (value == null) {
          throw new NullPointerException();
        }
        
        statementType_ = value.getNumber();
        onChanged();
        return this;
      }
      /**
       * <code>optional .StatementType statementType = 5;</code>
       */
      public Builder clearStatementType() {
        
        statementType_ = 0;
        onChanged();
        return this;
      }
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return this;
      }

      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return this;
      }


      // @@protoc_insertion_point(builder_scope:Signature)
    }

    // @@protoc_insertion_point(class_scope:Signature)
    private static final org.apache.calcite.avatica.proto.Common.Signature DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new org.apache.calcite.avatica.proto.Common.Signature();
    }

    public static org.apache.calcite.avatica.proto.Common.Signature getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser<Signature>
        PARSER = new com.google.protobuf.AbstractParser<Signature>() {
      public Signature parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
          return new Signature(input, extensionRegistry);
      }
    };

    public static com.google.protobuf.Parser<Signature> parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser<Signature> getParserForType() {
      return PARSER;
    }

    public org.apache.calcite.avatica.proto.Common.Signature getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface ColumnMetaDataOrBuilder extends
      // @@protoc_insertion_point(interface_extends:ColumnMetaData)
      com.google.protobuf.MessageOrBuilder {

    /**
     * <code>optional uint32 ordinal = 1;</code>
     */
    int getOrdinal();

    /**
     * <code>optional bool auto_increment = 2;</code>
     */
    boolean getAutoIncrement();

    /**
     * <code>optional bool case_sensitive = 3;</code>
     */
    boolean getCaseSensitive();

    /**
     * <code>optional bool searchable = 4;</code>
     */
    boolean getSearchable();

    /**
     * <code>optional bool currency = 5;</code>
     */
    boolean getCurrency();

    /**
     * <code>optional uint32 nullable = 6;</code>
     */
    int getNullable();

    /**
     * <code>optional bool signed = 7;</code>
     */
    boolean getSigned();

    /**
     * <code>optional uint32 display_size = 8;</code>
     */
    int getDisplaySize();

    /**
     * <code>optional string label = 9;</code>
     */
    java.lang.String getLabel();
    /**
     * <code>optional string label = 9;</code>
     */
    com.google.protobuf.ByteString
        getLabelBytes();

    /**
     * <code>optional string column_name = 10;</code>
     */
    java.lang.String getColumnName();
    /**
     * <code>optional string column_name = 10;</code>
     */
    com.google.protobuf.ByteString
        getColumnNameBytes();

    /**
     * <code>optional string schema_name = 11;</code>
     */
    java.lang.String getSchemaName();
    /**
     * <code>optional string schema_name = 11;</code>
     */
    com.google.protobuf.ByteString
        getSchemaNameBytes();

    /**
     * <code>optional uint32 precision = 12;</code>
     */
    int getPrecision();

    /**
     * <code>optional uint32 scale = 13;</code>
     */
    int getScale();

    /**
     * <code>optional string table_name = 14;</code>
     */
    java.lang.String getTableName();
    /**
     * <code>optional string table_name = 14;</code>
     */
    com.google.protobuf.ByteString
        getTableNameBytes();

    /**
     * <code>optional string catalog_name = 15;</code>
     */
    java.lang.String getCatalogName();
    /**
     * <code>optional string catalog_name = 15;</code>
     */
    com.google.protobuf.ByteString
        getCatalogNameBytes();

    /**
     * <code>optional bool read_only = 16;</code>
     */
    boolean getReadOnly();

    /**
     * <code>optional bool writable = 17;</code>
     */
    boolean getWritable();

    /**
     * <code>optional bool definitely_writable = 18;</code>
     */
    boolean getDefinitelyWritable();

    /**
     * <code>optional string column_class_name = 19;</code>
     */
    java.lang.String getColumnClassName();
    /**
     * <code>optional string column_class_name = 19;</code>
     */
    com.google.protobuf.ByteString
        getColumnClassNameBytes();

    /**
     * <code>optional .AvaticaType type = 20;</code>
     */
    boolean hasType();
    /**
     * <code>optional .AvaticaType type = 20;</code>
     */
    org.apache.calcite.avatica.proto.Common.AvaticaType getType();
    /**
     * <code>optional .AvaticaType type = 20;</code>
     */
    org.apache.calcite.avatica.proto.Common.AvaticaTypeOrBuilder getTypeOrBuilder();
  }
  /**
   * Protobuf type {@code ColumnMetaData}
   */
  public  static final class ColumnMetaData extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:ColumnMetaData)
      ColumnMetaDataOrBuilder {
    // Use ColumnMetaData.newBuilder() to construct.
    private ColumnMetaData(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
      super(builder);
    }
    private ColumnMetaData() {
      ordinal_ = 0;
      autoIncrement_ = false;
      caseSensitive_ = false;
      searchable_ = false;
      currency_ = false;
      nullable_ = 0;
      signed_ = false;
      displaySize_ = 0;
      label_ = "";
      columnName_ = "";
      schemaName_ = "";
      precision_ = 0;
      scale_ = 0;
      tableName_ = "";
      catalogName_ = "";
      readOnly_ = false;
      writable_ = false;
      definitelyWritable_ = false;
      columnClassName_ = "";
    }

    @java.lang.Override
    public final com.google.protobuf.UnknownFieldSet
    getUnknownFields() {
      return com.google.protobuf.UnknownFieldSet.getDefaultInstance();
    }
    private ColumnMetaData(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      this();
      int mutable_bitField0_ = 0;
      try {
        boolean done = false;
        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            default: {
              if (!input.skipField(tag)) {
                done = true;
              }
              break;
            }
            case 8: {

              ordinal_ = input.readUInt32();
              break;
            }
            case 16: {

              autoIncrement_ = input.readBool();
              break;
            }
            case 24: {

              caseSensitive_ = input.readBool();
              break;
            }
            case 32: {

              searchable_ = input.readBool();
              break;
            }
            case 40: {

              currency_ = input.readBool();
              break;
            }
            case 48: {

              nullable_ = input.readUInt32();
              break;
            }
            case 56: {

              signed_ = input.readBool();
              break;
            }
            case 64: {

              displaySize_ = input.readUInt32();
              break;
            }
            case 74: {
              java.lang.String s = input.readStringRequireUtf8();

              label_ = s;
              break;
            }
            case 82: {
              java.lang.String s = input.readStringRequireUtf8();

              columnName_ = s;
              break;
            }
            case 90: {
              java.lang.String s = input.readStringRequireUtf8();

              schemaName_ = s;
              break;
            }
            case 96: {

              precision_ = input.readUInt32();
              break;
            }
            case 104: {

              scale_ = input.readUInt32();
              break;
            }
            case 114: {
              java.lang.String s = input.readStringRequireUtf8();

              tableName_ = s;
              break;
            }
            case 122: {
              java.lang.String s = input.readStringRequireUtf8();

              catalogName_ = s;
              break;
            }
            case 128: {

              readOnly_ = input.readBool();
              break;
            }
            case 136: {

              writable_ = input.readBool();
              break;
            }
            case 144: {

              definitelyWritable_ = input.readBool();
              break;
            }
            case 154: {
              java.lang.String s = input.readStringRequireUtf8();

              columnClassName_ = s;
              break;
            }
            case 162: {
              org.apache.calcite.avatica.proto.Common.AvaticaType.Builder subBuilder = null;
              if (type_ != null) {
                subBuilder = type_.toBuilder();
              }
              type_ = input.readMessage(org.apache.calcite.avatica.proto.Common.AvaticaType.parser(), extensionRegistry);
              if (subBuilder != null) {
                subBuilder.mergeFrom(type_);
                type_ = subBuilder.buildPartial();
              }

              break;
            }
          }
        }
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.setUnfinishedMessage(this);
      } catch (java.io.IOException e) {
        throw new com.google.protobuf.InvalidProtocolBufferException(
            e).setUnfinishedMessage(this);
      } finally {
        makeExtensionsImmutable();
      }
    }
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return org.apache.calcite.avatica.proto.Common.internal_static_ColumnMetaData_descriptor;
    }

    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return org.apache.calcite.avatica.proto.Common.internal_static_ColumnMetaData_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              org.apache.calcite.avatica.proto.Common.ColumnMetaData.class, org.apache.calcite.avatica.proto.Common.ColumnMetaData.Builder.class);
    }

    public static final int ORDINAL_FIELD_NUMBER = 1;
    private int ordinal_;
    /**
     * <code>optional uint32 ordinal = 1;</code>
     */
    public int getOrdinal() {
      return ordinal_;
    }

    public static final int AUTO_INCREMENT_FIELD_NUMBER = 2;
    private boolean autoIncrement_;
    /**
     * <code>optional bool auto_increment = 2;</code>
     */
    public boolean getAutoIncrement() {
      return autoIncrement_;
    }

    public static final int CASE_SENSITIVE_FIELD_NUMBER = 3;
    private boolean caseSensitive_;
    /**
     * <code>optional bool case_sensitive = 3;</code>
     */
    public boolean getCaseSensitive() {
      return caseSensitive_;
    }

    public static final int SEARCHABLE_FIELD_NUMBER = 4;
    private boolean searchable_;
    /**
     * <code>optional bool searchable = 4;</code>
     */
    public boolean getSearchable() {
      return searchable_;
    }

    public static final int CURRENCY_FIELD_NUMBER = 5;
    private boolean currency_;
    /**
     * <code>optional bool currency = 5;</code>
     */
    public boolean getCurrency() {
      return currency_;
    }

    public static final int NULLABLE_FIELD_NUMBER = 6;
    private int nullable_;
    /**
     * <code>optional uint32 nullable = 6;</code>
     */
    public int getNullable() {
      return nullable_;
    }

    public static final int SIGNED_FIELD_NUMBER = 7;
    private boolean signed_;
    /**
     * <code>optional bool signed = 7;</code>
     */
    public boolean getSigned() {
      return signed_;
    }

    public static final int DISPLAY_SIZE_FIELD_NUMBER = 8;
    private int displaySize_;
    /**
     * <code>optional uint32 display_size = 8;</code>
     */
    public int getDisplaySize() {
      return displaySize_;
    }

    public static final int LABEL_FIELD_NUMBER = 9;
    private volatile java.lang.Object label_;
    /**
     * <code>optional string label = 9;</code>
     */
    public java.lang.String getLabel() {
      java.lang.Object ref = label_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = 
            (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        label_ = s;
        return s;
      }
    }
    /**
     * <code>optional string label = 9;</code>
     */
    public com.google.protobuf.ByteString
        getLabelBytes() {
      java.lang.Object ref = label_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b = 
            com.google.protobuf.ByteString.copyFromUtf8(
                (java.lang.String) ref);
        label_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }

    public static final int COLUMN_NAME_FIELD_NUMBER = 10;
    private volatile java.lang.Object columnName_;
    /**
     * <code>optional string column_name = 10;</code>
     */
    public java.lang.String getColumnName() {
      java.lang.Object ref = columnName_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = 
            (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        columnName_ = s;
        return s;
      }
    }
    /**
     * <code>optional string column_name = 10;</code>
     */
    public com.google.protobuf.ByteString
        getColumnNameBytes() {
      java.lang.Object ref = columnName_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b = 
            com.google.protobuf.ByteString.copyFromUtf8(
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        }
        if (other.getSearchable() != false) {
          setSearchable(other.getSearchable());
        }
        if (other.getCurrency() != false) {
          setCurrency(other.getCurrency());
        }
        if (other.getNullable() != 0) {
          setNullable(other.getNullable());
        }
        if (other.getSigned() != false) {
          setSigned(other.getSigned());
        }
        if (other.getDisplaySize() != 0) {
          setDisplaySize(other.getDisplaySize());
        }
        if (!other.getLabel().isEmpty()) {
          label_ = other.label_;
          onChanged();
        }
        if (!other.getColumnName().isEmpty()) {
          columnName_ = other.columnName_;
          onChanged();
        }
        if (!other.getSchemaName().isEmpty()) {
          schemaName_ = other.schemaName_;
          onChanged();
        }
        if (other.getPrecision() != 0) {
          setPrecision(other.getPrecision());
        }
        if (other.getScale() != 0) {
          setScale(other.getScale());
        }
        if (!other.getTableName().isEmpty()) {
          tableName_ = other.tableName_;
          onChanged();
        }
        if (!other.getCatalogName().isEmpty()) {
          catalogName_ = other.catalogName_;
          onChanged();
        }
        if (other.getReadOnly() != false) {
          setReadOnly(other.getReadOnly());
        }
        if (other.getWritable() != false) {
          setWritable(other.getWritable());
        }
        if (other.getDefinitelyWritable() != false) {
          setDefinitelyWritable(other.getDefinitelyWritable());
        }
        if (!other.getColumnClassName().isEmpty()) {
          columnClassName_ = other.columnClassName_;
          onChanged();
        }
        if (other.hasType()) {
          mergeType(other.getType());
        }
        onChanged();
        return this;
      }

      public final boolean isInitialized() {
        return true;
      }

      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        org.apache.calcite.avatica.proto.Common.ColumnMetaData parsedMessage = null;
        try {
          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          parsedMessage = (org.apache.calcite.avatica.proto.Common.ColumnMetaData) e.getUnfinishedMessage();
          throw e.unwrapIOException();
        } finally {
          if (parsedMessage != null) {
            mergeFrom(parsedMessage);
          }
        }
        return this;
      }

      private int ordinal_ ;
      /**
       * <code>optional uint32 ordinal = 1;</code>
       */
      public int getOrdinal() {
        return ordinal_;
      }
      /**
       * <code>optional uint32 ordinal = 1;</code>
       */
      public Builder setOrdinal(int value) {
        
        ordinal_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional uint32 ordinal = 1;</code>
       */
      public Builder clearOrdinal() {
        
        ordinal_ = 0;
        onChanged();
        return this;
      }

      private boolean autoIncrement_ ;
      /**
       * <code>optional bool auto_increment = 2;</code>
       */
      public boolean getAutoIncrement() {
        return autoIncrement_;
      }
      /**
       * <code>optional bool auto_increment = 2;</code>
       */
      public Builder setAutoIncrement(boolean value) {
        
        autoIncrement_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional bool auto_increment = 2;</code>
       */
      public Builder clearAutoIncrement() {
        
        autoIncrement_ = false;
        onChanged();
        return this;
      }

      private boolean caseSensitive_ ;
      /**
       * <code>optional bool case_sensitive = 3;</code>
       */
      public boolean getCaseSensitive() {
        return caseSensitive_;
      }
      /**
       * <code>optional bool case_sensitive = 3;</code>
       */
      public Builder setCaseSensitive(boolean value) {
        
        caseSensitive_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional bool case_sensitive = 3;</code>
       */
      public Builder clearCaseSensitive() {
        
        caseSensitive_ = false;
        onChanged();
        return this;
      }

      private boolean searchable_ ;
      /**
       * <code>optional bool searchable = 4;</code>
       */
      public boolean getSearchable() {
        return searchable_;
      }
      /**
       * <code>optional bool searchable = 4;</code>
       */
      public Builder setSearchable(boolean value) {
        
        searchable_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional bool searchable = 4;</code>
       */
      public Builder clearSearchable() {
        
        searchable_ = false;
        onChanged();
        return this;
      }

      private boolean currency_ ;
      /**
       * <code>optional bool currency = 5;</code>
       */
      public boolean getCurrency() {
        return currency_;
      }
      /**
       * <code>optional bool currency = 5;</code>
       */
      public Builder setCurrency(boolean value) {
        
        currency_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional bool currency = 5;</code>
       */
      public Builder clearCurrency() {
        
        currency_ = false;
        onChanged();
        return this;
      }

      private int nullable_ ;
      /**
       * <code>optional uint32 nullable = 6;</code>
       */
      public int getNullable() {
        return nullable_;
      }
      /**
       * <code>optional uint32 nullable = 6;</code>
       */
      public Builder setNullable(int value) {
        
        nullable_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional uint32 nullable = 6;</code>
       */
      public Builder clearNullable() {
        
        nullable_ = 0;
        onChanged();
        return this;
      }

      private boolean signed_ ;
      /**
       * <code>optional bool signed = 7;</code>
       */
      public boolean getSigned() {
        return signed_;
      }
      /**
       * <code>optional bool signed = 7;</code>
       */
      public Builder setSigned(boolean value) {
        
        signed_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional bool signed = 7;</code>
       */
      public Builder clearSigned() {
        
        signed_ = false;
        onChanged();
        return this;
      }

      private int displaySize_ ;
      /**
       * <code>optional uint32 display_size = 8;</code>
       */
      public int getDisplaySize() {
        return displaySize_;
      }
      /**
       * <code>optional uint32 display_size = 8;</code>
       */
      public Builder setDisplaySize(int value) {
        
        displaySize_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional uint32 display_size = 8;</code>
       */
      public Builder clearDisplaySize() {
        
        displaySize_ = 0;
        onChanged();
        return this;
      }

      private java.lang.Object label_ = "";
      /**
       * <code>optional string label = 9;</code>
       */
      public java.lang.String getLabel() {
        java.lang.Object ref = label_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs =
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          label_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
      /**
       * <code>optional string label = 9;</code>
       */
      public com.google.protobuf.ByteString
          getLabelBytes() {
        java.lang.Object ref = label_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          label_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * <code>optional string label = 9;</code>
       */
      public Builder setLabel(
          java.lang.String value) {
        if (value == null) {
    throw new NullPointerException();
  }
  
        label_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional string label = 9;</code>
       */
      public Builder clearLabel() {
        
        label_ = getDefaultInstance().getLabel();
        onChanged();
        return this;
      }
      /**
       * <code>optional string label = 9;</code>
       */
      public Builder setLabelBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  checkByteStringIsUtf8(value);
        
        label_ = value;
        onChanged();
        return this;
      }

      private java.lang.Object columnName_ = "";
      /**
       * <code>optional string column_name = 10;</code>
       */
      public java.lang.String getColumnName() {
        java.lang.Object ref = columnName_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs =
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          columnName_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
      /**
       * <code>optional string column_name = 10;</code>
       */
      public com.google.protobuf.ByteString
          getColumnNameBytes() {
        java.lang.Object ref = columnName_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          columnName_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * <code>optional string column_name = 10;</code>
       */
      public Builder setColumnName(
          java.lang.String value) {
        if (value == null) {
    throw new NullPointerException();
  }
  
        columnName_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional string column_name = 10;</code>
       */
      public Builder clearColumnName() {
        
        columnName_ = getDefaultInstance().getColumnName();
        onChanged();
        return this;
      }
      /**
       * <code>optional string column_name = 10;</code>
       */
      public Builder setColumnNameBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  checkByteStringIsUtf8(value);
        
        columnName_ = value;
        onChanged();
        return this;
      }

      private java.lang.Object schemaName_ = "";
      /**
       * <code>optional string schema_name = 11;</code>
       */
      public java.lang.String getSchemaName() {
        java.lang.Object ref = schemaName_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs =
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          schemaName_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
      /**
       * <code>optional string schema_name = 11;</code>
       */
      public com.google.protobuf.ByteString
          getSchemaNameBytes() {
        java.lang.Object ref = schemaName_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          schemaName_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * <code>optional string schema_name = 11;</code>
       */
      public Builder setSchemaName(
          java.lang.String value) {
        if (value == null) {
    throw new NullPointerException();
  }
  
        schemaName_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional string schema_name = 11;</code>
       */
      public Builder clearSchemaName() {
        
        schemaName_ = getDefaultInstance().getSchemaName();
        onChanged();
        return this;
      }
      /**
       * <code>optional string schema_name = 11;</code>
       */
      public Builder setSchemaNameBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  checkByteStringIsUtf8(value);
        
        schemaName_ = value;
        onChanged();
        return this;
      }

      private int precision_ ;
      /**
       * <code>optional uint32 precision = 12;</code>
       */
      public int getPrecision() {
        return precision_;
      }
      /**
       * <code>optional uint32 precision = 12;</code>
       */
      public Builder setPrecision(int value) {
        
        precision_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional uint32 precision = 12;</code>
       */
      public Builder clearPrecision() {
        
        precision_ = 0;
        onChanged();
        return this;
      }

      private int scale_ ;
      /**
       * <code>optional uint32 scale = 13;</code>
       */
      public int getScale() {
        return scale_;
      }
      /**
       * <code>optional uint32 scale = 13;</code>
       */
      public Builder setScale(int value) {
        
        scale_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional uint32 scale = 13;</code>
       */
      public Builder clearScale() {
        
        scale_ = 0;
        onChanged();
        return this;
      }

      private java.lang.Object tableName_ = "";
      /**
       * <code>optional string table_name = 14;</code>
       */
      public java.lang.String getTableName() {
        java.lang.Object ref = tableName_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs =
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          tableName_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
      /**
       * <code>optional string table_name = 14;</code>
       */
      public com.google.protobuf.ByteString
          getTableNameBytes() {
        java.lang.Object ref = tableName_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          tableName_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * <code>optional string table_name = 14;</code>
       */
      public Builder setTableName(
          java.lang.String value) {
        if (value == null) {
    throw new NullPointerException();
  }
  
        tableName_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional string table_name = 14;</code>
       */
      public Builder clearTableName() {
        
        tableName_ = getDefaultInstance().getTableName();
        onChanged();
        return this;
      }
      /**
       * <code>optional string table_name = 14;</code>
       */
      public Builder setTableNameBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  checkByteStringIsUtf8(value);
        
        tableName_ = value;
        onChanged();
        return this;
      }

      private java.lang.Object catalogName_ = "";
      /**
       * <code>optional string catalog_name = 15;</code>
       */
      public java.lang.String getCatalogName() {
        java.lang.Object ref = catalogName_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs =
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          catalogName_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
      /**
       * <code>optional string catalog_name = 15;</code>
       */
      public com.google.protobuf.ByteString
          getCatalogNameBytes() {
        java.lang.Object ref = catalogName_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          catalogName_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * <code>optional string catalog_name = 15;</code>
       */
      public Builder setCatalogName(
          java.lang.String value) {
        if (value == null) {
    throw new NullPointerException();
  }
  
        catalogName_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional string catalog_name = 15;</code>
       */
      public Builder clearCatalogName() {
        
        catalogName_ = getDefaultInstance().getCatalogName();
        onChanged();
        return this;
      }
      /**
       * <code>optional string catalog_name = 15;</code>
       */
      public Builder setCatalogNameBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  checkByteStringIsUtf8(value);
        
        catalogName_ = value;
        onChanged();
        return this;
      }

      private boolean readOnly_ ;
      /**
       * <code>optional bool read_only = 16;</code>
       */
      public boolean getReadOnly() {
        return readOnly_;
      }
      /**
       * <code>optional bool read_only = 16;</code>
       */
      public Builder setReadOnly(boolean value) {
        
        readOnly_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional bool read_only = 16;</code>
       */
      public Builder clearReadOnly() {
        
        readOnly_ = false;
        onChanged();
        return this;
      }

      private boolean writable_ ;
      /**
       * <code>optional bool writable = 17;</code>
       */
      public boolean getWritable() {
        return writable_;
      }
      /**
       * <code>optional bool writable = 17;</code>
       */
      public Builder setWritable(boolean value) {
        
        writable_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional bool writable = 17;</code>
       */
      public Builder clearWritable() {
        
        writable_ = false;
        onChanged();
        return this;
      }

      private boolean definitelyWritable_ ;
      /**
       * <code>optional bool definitely_writable = 18;</code>
       */
      public boolean getDefinitelyWritable() {
        return definitelyWritable_;
      }
      /**
       * <code>optional bool definitely_writable = 18;</code>
       */
      public Builder setDefinitelyWritable(boolean value) {
        
        definitelyWritable_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional bool definitely_writable = 18;</code>
       */
      public Builder clearDefinitelyWritable() {
        
        definitelyWritable_ = false;
        onChanged();
        return this;
      }

      private java.lang.Object columnClassName_ = "";
      /**
       * <code>optional string column_class_name = 19;</code>
       */
      public java.lang.String getColumnClassName() {
        java.lang.Object ref = columnClassName_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs =
              (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          columnClassName_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
      /**
       * <code>optional string column_class_name = 19;</code>
       */
      public com.google.protobuf.ByteString
          getColumnClassNameBytes() {
        java.lang.Object ref = columnClassName_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          columnClassName_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * <code>optional string column_class_name = 19;</code>
       */
      public Builder setColumnClassName(
          java.lang.String value) {
        if (value == null) {
    throw new NullPointerException();
  }
  
        columnClassName_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional string column_class_name = 19;</code>
       */
      public Builder clearColumnClassName() {
        
        columnClassName_ = getDefaultInstance().getColumnClassName();
        onChanged();
        return this;
      }
      /**
       * <code>optional string column_class_name = 19;</code>
       */
      public Builder setColumnClassNameBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  checkByteStringIsUtf8(value);
        
        columnClassName_ = value;
        onChanged();
        return this;
      }

      private org.apache.calcite.avatica.proto.Common.AvaticaType type_ = null;
      private com.google.protobuf.SingleFieldBuilderV3<
          org.apache.calcite.avatica.proto.Common.AvaticaType, org.apache.calcite.avatica.proto.Common.AvaticaType.Builder, org.apache.calcite.avatica.proto.Common.AvaticaTypeOrBuilder> typeBuilder_;
      /**
       * <code>optional .AvaticaType type = 20;</code>
       */
      public boolean hasType() {
        return typeBuilder_ != null || type_ != null;
      }
      /**
       * <code>optional .AvaticaType type = 20;</code>
       */
      public org.apache.calcite.avatica.proto.Common.AvaticaType getType() {
        if (typeBuilder_ == null) {
          return type_ == null ? org.apache.calcite.avatica.proto.Common.AvaticaType.getDefaultInstance() : type_;
        } else {
          return typeBuilder_.getMessage();
        }
      }
      /**
       * <code>optional .AvaticaType type = 20;</code>
       */
      public Builder setType(org.apache.calcite.avatica.proto.Common.AvaticaType value) {
        if (typeBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          type_ = value;
          onChanged();
        } else {
          typeBuilder_.setMessage(value);
        }

        return this;
      }
      /**
       * <code>optional .AvaticaType type = 20;</code>
       */
      public Builder setType(
          org.apache.calcite.avatica.proto.Common.AvaticaType.Builder builderForValue) {
        if (typeBuilder_ == null) {
          type_ = builderForValue.build();
          onChanged();
        } else {
          typeBuilder_.setMessage(builderForValue.build());
        }

        return this;
      }
      /**
       * <code>optional .AvaticaType type = 20;</code>
       */
      public Builder mergeType(org.apache.calcite.avatica.proto.Common.AvaticaType value) {
        if (typeBuilder_ == null) {
          if (type_ != null) {
            type_ =
              org.apache.calcite.avatica.proto.Common.AvaticaType.newBuilder(type_).mergeFrom(value).buildPartial();
          } else {
            type_ = value;
          }
          onChanged();
        } else {
          typeBuilder_.mergeFrom(value);
        }

        return this;
      }
      /**
       * <code>optional .AvaticaType type = 20;</code>
       */
      public Builder clearType() {
        if (typeBuilder_ == null) {
          type_ = null;
          onChanged();
        } else {
          type_ = null;
          typeBuilder_ = null;
        }

        return this;
      }
      /**
       * <code>optional .AvaticaType type = 20;</code>
       */
      public org.apache.calcite.avatica.proto.Common.AvaticaType.Builder getTypeBuilder() {
        
        onChanged();
        return getTypeFieldBuilder().getBuilder();
      }
      /**
       * <code>optional .AvaticaType type = 20;</code>
       */
      public org.apache.calcite.avatica.proto.Common.AvaticaTypeOrBuilder getTypeOrBuilder() {
        if (typeBuilder_ != null) {
          return typeBuilder_.getMessageOrBuilder();
        } else {
          return type_ == null ?
              org.apache.calcite.avatica.proto.Common.AvaticaType.getDefaultInstance() : type_;
        }
      }
      /**
       * <code>optional .AvaticaType type = 20;</code>
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          org.apache.calcite.avatica.proto.Common.AvaticaType, org.apache.calcite.avatica.proto.Common.AvaticaType.Builder, org.apache.calcite.avatica.proto.Common.AvaticaTypeOrBuilder> 
          getTypeFieldBuilder() {
        if (typeBuilder_ == null) {
          typeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              org.apache.calcite.avatica.proto.Common.AvaticaType, org.apache.calcite.avatica.proto.Common.AvaticaType.Builder, org.apache.calcite.avatica.proto.Common.AvaticaTypeOrBuilder>(
                  getType(),
                  getParentForChildren(),
                  isClean());
          type_ = null;
        }
        return typeBuilder_;
      }
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return this;
      }

      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return this;
      }


      // @@protoc_insertion_point(builder_scope:ColumnMetaData)
    }

    // @@protoc_insertion_point(class_scope:ColumnMetaData)
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        }
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      private java.lang.Object name_ = "";
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      /**
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      public Builder setName(
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    throw new NullPointerException();
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        name_ = value;
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        return this;
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       * <code>optional .Rep rep = 3;</code>
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        rep_ = value;
        onChanged();
        return this;
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      /**
       * <code>optional .Rep rep = 3;</code>
       */
      public org.apache.calcite.avatica.proto.Common.Rep getRep() {
        org.apache.calcite.avatica.proto.Common.Rep result = org.apache.calcite.avatica.proto.Common.Rep.valueOf(rep_);
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      /**
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        rep_ = value.getNumber();
        onChanged();
        return this;
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      /**
       * <code>optional .Rep rep = 3;</code>
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        rep_ = 0;
        onChanged();
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      private java.util.List<org.apache.calcite.avatica.proto.Common.ColumnMetaData> columns_ =
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      private void ensureColumnsIsMutable() {
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      private com.google.protobuf.RepeatedFieldBuilderV3<
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      /**
       * <pre>
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       * <code>repeated .ColumnMetaData columns = 4;</code>
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        if (columnsBuilder_ == null) {
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       * <code>repeated .ColumnMetaData columns = 4;</code>
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        if (columnsBuilder_ == null) {
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        }
      }
      /**
       * <pre>
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       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public org.apache.calcite.avatica.proto.Common.ColumnMetaData getColumns(int index) {
        if (columnsBuilder_ == null) {
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        } else {
          return columnsBuilder_.getMessage(index);
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      }
      /**
       * <pre>
       * Only present when name = STRUCT
       * </pre>
       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public Builder setColumns(
          int index, org.apache.calcite.avatica.proto.Common.ColumnMetaData value) {
        if (columnsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureColumnsIsMutable();
          columns_.set(index, value);
          onChanged();
        } else {
          columnsBuilder_.setMessage(index, value);
        }
        return this;
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      /**
       * <pre>
       * Only present when name = STRUCT
       * </pre>
       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public Builder setColumns(
          int index, org.apache.calcite.avatica.proto.Common.ColumnMetaData.Builder builderForValue) {
        if (columnsBuilder_ == null) {
          ensureColumnsIsMutable();
          columns_.set(index, builderForValue.build());
          onChanged();
        } else {
          columnsBuilder_.setMessage(index, builderForValue.build());
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        return this;
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      /**
       * <pre>
       * Only present when name = STRUCT
       * </pre>
       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public Builder addColumns(org.apache.calcite.avatica.proto.Common.ColumnMetaData value) {
        if (columnsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureColumnsIsMutable();
          columns_.add(value);
          onChanged();
        } else {
          columnsBuilder_.addMessage(value);
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        return this;
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      /**
       * <pre>
       * Only present when name = STRUCT
       * </pre>
       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public Builder addColumns(
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        if (columnsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
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          ensureColumnsIsMutable();
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          onChanged();
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          columnsBuilder_.addMessage(index, value);
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        return this;
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      /**
       * <pre>
       * Only present when name = STRUCT
       * </pre>
       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public Builder addColumns(
          org.apache.calcite.avatica.proto.Common.ColumnMetaData.Builder builderForValue) {
        if (columnsBuilder_ == null) {
          ensureColumnsIsMutable();
          columns_.add(builderForValue.build());
          onChanged();
        } else {
          columnsBuilder_.addMessage(builderForValue.build());
        }
        return this;
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      /**
       * <pre>
       * Only present when name = STRUCT
       * </pre>
       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public Builder addColumns(
          int index, org.apache.calcite.avatica.proto.Common.ColumnMetaData.Builder builderForValue) {
        if (columnsBuilder_ == null) {
          ensureColumnsIsMutable();
          columns_.add(index, builderForValue.build());
          onChanged();
        } else {
          columnsBuilder_.addMessage(index, builderForValue.build());
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        return this;
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      /**
       * <pre>
       * Only present when name = STRUCT
       * </pre>
       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public Builder addAllColumns(
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        if (columnsBuilder_ == null) {
          ensureColumnsIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
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          onChanged();
        } else {
          columnsBuilder_.addAllMessages(values);
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        return this;
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      /**
       * <pre>
       * Only present when name = STRUCT
       * </pre>
       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public Builder clearColumns() {
        if (columnsBuilder_ == null) {
          columns_ = java.util.Collections.emptyList();
          bitField0_ = (bitField0_ & ~0x00000008);
          onChanged();
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        return this;
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      /**
       * <pre>
       * Only present when name = STRUCT
       * </pre>
       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public Builder removeColumns(int index) {
        if (columnsBuilder_ == null) {
          ensureColumnsIsMutable();
          columns_.remove(index);
          onChanged();
        } else {
          columnsBuilder_.remove(index);
        }
        return this;
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      /**
       * <pre>
       * Only present when name = STRUCT
       * </pre>
       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public org.apache.calcite.avatica.proto.Common.ColumnMetaData.Builder getColumnsBuilder(
          int index) {
        return getColumnsFieldBuilder().getBuilder(index);
      }
      /**
       * <pre>
       * Only present when name = STRUCT
       * </pre>
       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public org.apache.calcite.avatica.proto.Common.ColumnMetaDataOrBuilder getColumnsOrBuilder(
          int index) {
        if (columnsBuilder_ == null) {
          return columns_.get(index);  } else {
          return columnsBuilder_.getMessageOrBuilder(index);
        }
      }
      /**
       * <pre>
       * Only present when name = STRUCT
       * </pre>
       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public java.util.List<? extends org.apache.calcite.avatica.proto.Common.ColumnMetaDataOrBuilder> 
           getColumnsOrBuilderList() {
        if (columnsBuilder_ != null) {
          return columnsBuilder_.getMessageOrBuilderList();
        } else {
          return java.util.Collections.unmodifiableList(columns_);
        }
      }
      /**
       * <pre>
       * Only present when name = STRUCT
       * </pre>
       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public org.apache.calcite.avatica.proto.Common.ColumnMetaData.Builder addColumnsBuilder() {
        return getColumnsFieldBuilder().addBuilder(
            org.apache.calcite.avatica.proto.Common.ColumnMetaData.getDefaultInstance());
      }
      /**
       * <pre>
       * Only present when name = STRUCT
       * </pre>
       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public org.apache.calcite.avatica.proto.Common.ColumnMetaData.Builder addColumnsBuilder(
          int index) {
        return getColumnsFieldBuilder().addBuilder(
            index, org.apache.calcite.avatica.proto.Common.ColumnMetaData.getDefaultInstance());
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      /**
       * <pre>
       * Only present when name = STRUCT
       * </pre>
       *
       * <code>repeated .ColumnMetaData columns = 4;</code>
       */
      public java.util.List<org.apache.calcite.avatica.proto.Common.ColumnMetaData.Builder> 
           getColumnsBuilderList() {
        return getColumnsFieldBuilder().getBuilderList();
      }
      private com.google.protobuf.RepeatedFieldBuilderV3<
          org.apache.calcite.avatica.proto.Common.ColumnMetaData, org.apache.calcite.avatica.proto.Common.ColumnMetaData.Builder, org.apache.calcite.avatica.proto.Common.ColumnMetaDataOrBuilder> 
          getColumnsFieldBuilder() {
        if (columnsBuilder_ == null) {
          columnsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
              org.apache.calcite.avatica.proto.Common.ColumnMetaData, org.apache.calcite.avatica.proto.Common.ColumnMetaData.Builder, org.apache.calcite.avatica.proto.Common.ColumnMetaDataOrBuilder>(
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                  ((bitField0_ & 0x00000008) == 0x00000008),
                  getParentForChildren(),
                  isClean());
          columns_ = null;
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        return columnsBuilder_;
      }

      private org.apache.calcite.avatica.proto.Common.AvaticaType component_ = null;
      private com.google.protobuf.SingleFieldBuilderV3<
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      /**
       * <pre>
       * Only present when name = ARRAY
       * </pre>
       *
       * <code>optional .AvaticaType component = 5;</code>
       */
      public boolean hasComponent() {
        return componentBuilder_ != null || component_ != null;
      }
      /**
       * <pre>
       * Only present when name = ARRAY
       * </pre>
       *
       * <code>optional .AvaticaType component = 5;</code>
       */
      public org.apache.calcite.avatica.proto.Common.AvaticaType getComponent() {
        if (componentBuilder_ == null) {
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      /**
       * <pre>
       * Only present when name = ARRAY
       * </pre>
       *
       * <code>optional .AvaticaType component = 5;</code>
       */
      public Builder setComponent(org.apache.calcite.avatica.proto.Common.AvaticaType value) {
        if (componentBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          component_ = value;
          onChanged();
        } else {
          componentBuilder_.setMessage(value);
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        return this;
      }
      /**
       * <pre>
       * Only present when name = ARRAY
       * </pre>
       *
       * <code>optional .AvaticaType component = 5;</code>
       */
      public Builder setComponent(
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        if (componentBuilder_ == null) {
          component_ = builderForValue.build();
          onChanged();
        } else {
          componentBuilder_.setMessage(builderForValue.build());
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        return this;
      }
      /**
       * <pre>
       * Only present when name = ARRAY
       * </pre>
       *
       * <code>optional .AvaticaType component = 5;</code>
       */
      public Builder mergeComponent(org.apache.calcite.avatica.proto.Common.AvaticaType value) {
        if (componentBuilder_ == null) {
          if (component_ != null) {
            component_ =
              org.apache.calcite.avatica.proto.Common.AvaticaType.newBuilder(component_).mergeFrom(value).buildPartial();
          } else {
            component_ = value;
          }
          onChanged();
        } else {
          componentBuilder_.mergeFrom(value);
        }

        return this;
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      /**
       * <pre>
       * Only present when name = ARRAY
       * </pre>
       *
       * <code>optional .AvaticaType component = 5;</code>
       */
      public Builder clearComponent() {
        if (componentBuilder_ == null) {
          component_ = null;
          onChanged();
        } else {
          component_ = null;
          componentBuilder_ = null;
        }

        return this;
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      /**
       * <pre>
       * Only present when name = ARRAY
       * </pre>
       *
       * <code>optional .AvaticaType component = 5;</code>
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      public org.apache.calcite.avatica.proto.Common.AvaticaType.Builder getComponentBuilder() {
        
        onChanged();
        return getComponentFieldBuilder().getBuilder();
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      /**
       * <pre>
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       * <code>optional .AvaticaType component = 5;</code>
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      public org.apache.calcite.avatica.proto.Common.AvaticaTypeOrBuilder getComponentOrBuilder() {
        if (componentBuilder_ != null) {
          return componentBuilder_.getMessageOrBuilder();
        } else {
          return component_ == null ?
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      /**
       * <pre>
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       * </pre>
       *
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      private com.google.protobuf.SingleFieldBuilderV3<
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          getComponentFieldBuilder() {
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          component_ = null;
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      public final Builder setUnknownFields(
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      public final Builder mergeUnknownFields(
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      // @@protoc_insertion_point(builder_scope:AvaticaType)
    }

    // @@protoc_insertion_point(class_scope:AvaticaType)
    private static final org.apache.calcite.avatica.proto.Common.AvaticaType DEFAULT_INSTANCE;
    static {
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    }

    public static org.apache.calcite.avatica.proto.Common.AvaticaType getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser<AvaticaType>
        PARSER = new com.google.protobuf.AbstractParser<AvaticaType>() {
      public AvaticaType parsePartialFrom(
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          return new AvaticaType(input, extensionRegistry);
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    public static com.google.protobuf.Parser<AvaticaType> parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser<AvaticaType> getParserForType() {
      return PARSER;
    }

    public org.apache.calcite.avatica.proto.Common.AvaticaType getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface AvaticaParameterOrBuilder extends
      // @@protoc_insertion_point(interface_extends:AvaticaParameter)
      com.google.protobuf.MessageOrBuilder {

    /**
     * <code>optional bool signed = 1;</code>
     */
    boolean getSigned();

    /**
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    int getPrecision();

    /**
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    /**
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    /**
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    /**
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    /**
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    /**
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    /**
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     */
    com.google.protobuf.ByteString
        getNameBytes();
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  /**
   * <pre>
   * Metadata for a parameter
   * </pre>
   *
   * Protobuf type {@code AvaticaParameter}
   */
  public  static final class AvaticaParameter extends
      com.google.protobuf.GeneratedMessageV3 implements
      // @@protoc_insertion_point(message_implements:AvaticaParameter)
      AvaticaParameterOrBuilder {
    // Use AvaticaParameter.newBuilder() to construct.
    private AvaticaParameter(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
      super(builder);
    }
    private AvaticaParameter() {
      signed_ = false;
      precision_ = 0;
      scale_ = 0;
      parameterType_ = 0;
      typeName_ = "";
      className_ = "";
      name_ = "";
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      this();
      int mutable_bitField0_ = 0;
      try {
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          int tag = input.readTag();
          switch (tag) {
            case 0:
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              break;
            default: {
              if (!input.skipField(tag)) {
                done = true;
              }
              break;
            }
            case 8: {

              signed_ = input.readBool();
              break;
            }
            case 16: {

              precision_ = input.readUInt32();
              break;
            }
            case 24: {

              scale_ = input.readUInt32();
              break;
            }
            case 32: {

              parameterType_ = input.readUInt32();
              break;
            }
            case 42: {
              java.lang.String s = input.readStringRequireUtf8();

              typeName_ = s;
              break;
            }
            case 50: {
              java.lang.String s = input.readStringRequireUtf8();

              className_ = s;
              break;
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            case 58: {
              java.lang.String s = input.readStringRequireUtf8();

              name_ = s;
              break;
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      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.setUnfinishedMessage(this);
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        throw new com.google.protobuf.InvalidProtocolBufferException(
            e).setUnfinishedMessage(this);
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        makeExtensionsImmutable();
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    }
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return org.apache.calcite.avatica.proto.Common.internal_static_AvaticaParameter_descriptor;
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    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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    public static final int SIGNED_FIELD_NUMBER = 1;
    private boolean signed_;
    /**
     * <code>optional bool signed = 1;</code>
     */
    public boolean getSigned() {
      return signed_;
    }

    public static final int PRECISION_FIELD_NUMBER = 2;
    private int precision_;
    /**
     * <code>optional uint32 precision = 2;</code>
     */
    public int getPrecision() {
      return precision_;
    }

    public static final int SCALE_FIELD_NUMBER = 3;
    private int scale_;
    /**
     * <code>optional uint32 scale = 3;</code>
     */
    public int getScale() {
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       * <pre>
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          onChanged();
        } else {
          valueBuilder_.setMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * <pre>
       * deprecated, use array_value or scalar_value
       * </pre>
       *
       * <code>repeated .TypedValue value = 1;</code>
       */
      public Builder addValue(org.apache.calcite.avatica.proto.Common.TypedValue value) {
        if (valueBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureValueIsMutable();
          value_.add(value);
          onChanged();
        } else {
          valueBuilder_.addMessage(value);
        }
        return this;
      }
      /**
       * <pre>
       * deprecated, use array_value or scalar_value
       * </pre>
       *
       * <code>repeated .TypedValue value = 1;</code>
       */
      public Builder addValue(
          int index, org.apache.calcite.avatica.proto.Common.TypedValue value) {
        if (valueBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureValueIsMutable();
          value_.add(index, value);
          onChanged();
        } else {
          valueBuilder_.addMessage(index, value);
        }
        return this;
      }
      /**
       * <pre>
       * deprecated, use array_value or scalar_value
       * </pre>
       *
       * <code>repeated .TypedValue value = 1;</code>
       */
      public Builder addValue(
          org.apache.calcite.avatica.proto.Common.TypedValue.Builder builderForValue) {
        if (valueBuilder_ == null) {
          ensureValueIsMutable();
          value_.add(builderForValue.build());
          onChanged();
        } else {
          valueBuilder_.addMessage(builderForValue.build());
        }
        return this;
      }
      /**
       * <pre>
       * deprecated, use array_value or scalar_value
       * </pre>
       *
       * <code>repeated .TypedValue value = 1;</code>
       */
      public Builder addValue(
          int index, org.apache.calcite.avatica.proto.Common.TypedValue.Builder builderForValue) {
        if (valueBuilder_ == null) {
          ensureValueIsMutable();
          value_.add(index, builderForValue.build());
          onChanged();
        } else {
          valueBuilder_.addMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * <pre>
       * deprecated, use array_value or scalar_value
       * </pre>
       *
       * <code>repeated .TypedValue value = 1;</code>
       */
      public Builder addAllValue(
          java.lang.Iterable<? extends org.apache.calcite.avatica.proto.Common.TypedValue> values) {
        if (valueBuilder_ == null) {
          ensureValueIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
              values, value_);
          onChanged();
        } else {
          valueBuilder_.addAllMessages(values);
        }
        return this;
      }
      /**
       * <pre>
       * deprecated, use array_value or scalar_value
       * </pre>
       *
       * <code>repeated .TypedValue value = 1;</code>
       */
      public Builder clearValue() {
        if (valueBuilder_ == null) {
          value_ = java.util.Collections.emptyList();
          bitField0_ = (bitField0_ & ~0x00000001);
          onChanged();
        } else {
          valueBuilder_.clear();
        }
        return this;
      }
      /**
       * <pre>
       * deprecated, use array_value or scalar_value
       * </pre>
       *
       * <code>repeated .TypedValue value = 1;</code>
       */
      public Builder removeValue(int index) {
        if (valueBuilder_ == null) {
          ensureValueIsMutable();
          value_.remove(index);
          onChanged();
        } else {
          valueBuilder_.remove(index);
        }
        return this;
      }
      /**
       * <pre>
       * deprecated, use array_value or scalar_value
       * </pre>
       *
       * <code>repeated .TypedValue value = 1;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValue.Builder getValueBuilder(
          int index) {
        return getValueFieldBuilder().getBuilder(index);
      }
      /**
       * <pre>
       * deprecated, use array_value or scalar_value
       * </pre>
       *
       * <code>repeated .TypedValue value = 1;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder getValueOrBuilder(
          int index) {
        if (valueBuilder_ == null) {
          return value_.get(index);  } else {
          return valueBuilder_.getMessageOrBuilder(index);
        }
      }
      /**
       * <pre>
       * deprecated, use array_value or scalar_value
       * </pre>
       *
       * <code>repeated .TypedValue value = 1;</code>
       */
      public java.util.List<? extends org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder> 
           getValueOrBuilderList() {
        if (valueBuilder_ != null) {
          return valueBuilder_.getMessageOrBuilderList();
        } else {
          return java.util.Collections.unmodifiableList(value_);
        }
      }
      /**
       * <pre>
       * deprecated, use array_value or scalar_value
       * </pre>
       *
       * <code>repeated .TypedValue value = 1;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValue.Builder addValueBuilder() {
        return getValueFieldBuilder().addBuilder(
            org.apache.calcite.avatica.proto.Common.TypedValue.getDefaultInstance());
      }
      /**
       * <pre>
       * deprecated, use array_value or scalar_value
       * </pre>
       *
       * <code>repeated .TypedValue value = 1;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValue.Builder addValueBuilder(
          int index) {
        return getValueFieldBuilder().addBuilder(
            index, org.apache.calcite.avatica.proto.Common.TypedValue.getDefaultInstance());
      }
      /**
       * <pre>
       * deprecated, use array_value or scalar_value
       * </pre>
       *
       * <code>repeated .TypedValue value = 1;</code>
       */
      public java.util.List<org.apache.calcite.avatica.proto.Common.TypedValue.Builder> 
           getValueBuilderList() {
        return getValueFieldBuilder().getBuilderList();
      }
      private com.google.protobuf.RepeatedFieldBuilderV3<
          org.apache.calcite.avatica.proto.Common.TypedValue, org.apache.calcite.avatica.proto.Common.TypedValue.Builder, org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder> 
          getValueFieldBuilder() {
        if (valueBuilder_ == null) {
          valueBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
              org.apache.calcite.avatica.proto.Common.TypedValue, org.apache.calcite.avatica.proto.Common.TypedValue.Builder, org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder>(
                  value_,
                  ((bitField0_ & 0x00000001) == 0x00000001),
                  getParentForChildren(),
                  isClean());
          value_ = null;
        }
        return valueBuilder_;
      }

      private java.util.List<org.apache.calcite.avatica.proto.Common.TypedValue> arrayValue_ =
        java.util.Collections.emptyList();
      private void ensureArrayValueIsMutable() {
        if (!((bitField0_ & 0x00000002) == 0x00000002)) {
          arrayValue_ = new java.util.ArrayList<org.apache.calcite.avatica.proto.Common.TypedValue>(arrayValue_);
          bitField0_ |= 0x00000002;
         }
      }

      private com.google.protobuf.RepeatedFieldBuilderV3<
          org.apache.calcite.avatica.proto.Common.TypedValue, org.apache.calcite.avatica.proto.Common.TypedValue.Builder, org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder> arrayValueBuilder_;

      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public java.util.List<org.apache.calcite.avatica.proto.Common.TypedValue> getArrayValueList() {
        if (arrayValueBuilder_ == null) {
          return java.util.Collections.unmodifiableList(arrayValue_);
        } else {
          return arrayValueBuilder_.getMessageList();
        }
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public int getArrayValueCount() {
        if (arrayValueBuilder_ == null) {
          return arrayValue_.size();
        } else {
          return arrayValueBuilder_.getCount();
        }
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValue getArrayValue(int index) {
        if (arrayValueBuilder_ == null) {
          return arrayValue_.get(index);
        } else {
          return arrayValueBuilder_.getMessage(index);
        }
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public Builder setArrayValue(
          int index, org.apache.calcite.avatica.proto.Common.TypedValue value) {
        if (arrayValueBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureArrayValueIsMutable();
          arrayValue_.set(index, value);
          onChanged();
        } else {
          arrayValueBuilder_.setMessage(index, value);
        }
        return this;
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public Builder setArrayValue(
          int index, org.apache.calcite.avatica.proto.Common.TypedValue.Builder builderForValue) {
        if (arrayValueBuilder_ == null) {
          ensureArrayValueIsMutable();
          arrayValue_.set(index, builderForValue.build());
          onChanged();
        } else {
          arrayValueBuilder_.setMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public Builder addArrayValue(org.apache.calcite.avatica.proto.Common.TypedValue value) {
        if (arrayValueBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureArrayValueIsMutable();
          arrayValue_.add(value);
          onChanged();
        } else {
          arrayValueBuilder_.addMessage(value);
        }
        return this;
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public Builder addArrayValue(
          int index, org.apache.calcite.avatica.proto.Common.TypedValue value) {
        if (arrayValueBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureArrayValueIsMutable();
          arrayValue_.add(index, value);
          onChanged();
        } else {
          arrayValueBuilder_.addMessage(index, value);
        }
        return this;
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public Builder addArrayValue(
          org.apache.calcite.avatica.proto.Common.TypedValue.Builder builderForValue) {
        if (arrayValueBuilder_ == null) {
          ensureArrayValueIsMutable();
          arrayValue_.add(builderForValue.build());
          onChanged();
        } else {
          arrayValueBuilder_.addMessage(builderForValue.build());
        }
        return this;
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public Builder addArrayValue(
          int index, org.apache.calcite.avatica.proto.Common.TypedValue.Builder builderForValue) {
        if (arrayValueBuilder_ == null) {
          ensureArrayValueIsMutable();
          arrayValue_.add(index, builderForValue.build());
          onChanged();
        } else {
          arrayValueBuilder_.addMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public Builder addAllArrayValue(
          java.lang.Iterable<? extends org.apache.calcite.avatica.proto.Common.TypedValue> values) {
        if (arrayValueBuilder_ == null) {
          ensureArrayValueIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
              values, arrayValue_);
          onChanged();
        } else {
          arrayValueBuilder_.addAllMessages(values);
        }
        return this;
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public Builder clearArrayValue() {
        if (arrayValueBuilder_ == null) {
          arrayValue_ = java.util.Collections.emptyList();
          bitField0_ = (bitField0_ & ~0x00000002);
          onChanged();
        } else {
          arrayValueBuilder_.clear();
        }
        return this;
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public Builder removeArrayValue(int index) {
        if (arrayValueBuilder_ == null) {
          ensureArrayValueIsMutable();
          arrayValue_.remove(index);
          onChanged();
        } else {
          arrayValueBuilder_.remove(index);
        }
        return this;
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValue.Builder getArrayValueBuilder(
          int index) {
        return getArrayValueFieldBuilder().getBuilder(index);
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder getArrayValueOrBuilder(
          int index) {
        if (arrayValueBuilder_ == null) {
          return arrayValue_.get(index);  } else {
          return arrayValueBuilder_.getMessageOrBuilder(index);
        }
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public java.util.List<? extends org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder> 
           getArrayValueOrBuilderList() {
        if (arrayValueBuilder_ != null) {
          return arrayValueBuilder_.getMessageOrBuilderList();
        } else {
          return java.util.Collections.unmodifiableList(arrayValue_);
        }
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValue.Builder addArrayValueBuilder() {
        return getArrayValueFieldBuilder().addBuilder(
            org.apache.calcite.avatica.proto.Common.TypedValue.getDefaultInstance());
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValue.Builder addArrayValueBuilder(
          int index) {
        return getArrayValueFieldBuilder().addBuilder(
            index, org.apache.calcite.avatica.proto.Common.TypedValue.getDefaultInstance());
      }
      /**
       * <code>repeated .TypedValue array_value = 2;</code>
       */
      public java.util.List<org.apache.calcite.avatica.proto.Common.TypedValue.Builder> 
           getArrayValueBuilderList() {
        return getArrayValueFieldBuilder().getBuilderList();
      }
      private com.google.protobuf.RepeatedFieldBuilderV3<
          org.apache.calcite.avatica.proto.Common.TypedValue, org.apache.calcite.avatica.proto.Common.TypedValue.Builder, org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder> 
          getArrayValueFieldBuilder() {
        if (arrayValueBuilder_ == null) {
          arrayValueBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
              org.apache.calcite.avatica.proto.Common.TypedValue, org.apache.calcite.avatica.proto.Common.TypedValue.Builder, org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder>(
                  arrayValue_,
                  ((bitField0_ & 0x00000002) == 0x00000002),
                  getParentForChildren(),
                  isClean());
          arrayValue_ = null;
        }
        return arrayValueBuilder_;
      }

      private boolean hasArrayValue_ ;
      /**
       * <pre>
       * Is an array value set?
       * </pre>
       *
       * <code>optional bool has_array_value = 3;</code>
       */
      public boolean getHasArrayValue() {
        return hasArrayValue_;
      }
      /**
       * <pre>
       * Is an array value set?
       * </pre>
       *
       * <code>optional bool has_array_value = 3;</code>
       */
      public Builder setHasArrayValue(boolean value) {
        
        hasArrayValue_ = value;
        onChanged();
        return this;
      }
      /**
       * <pre>
       * Is an array value set?
       * </pre>
       *
       * <code>optional bool has_array_value = 3;</code>
       */
      public Builder clearHasArrayValue() {
        
        hasArrayValue_ = false;
        onChanged();
        return this;
      }

      private org.apache.calcite.avatica.proto.Common.TypedValue scalarValue_ = null;
      private com.google.protobuf.SingleFieldBuilderV3<
          org.apache.calcite.avatica.proto.Common.TypedValue, org.apache.calcite.avatica.proto.Common.TypedValue.Builder, org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder> scalarValueBuilder_;
      /**
       * <code>optional .TypedValue scalar_value = 4;</code>
       */
      public boolean hasScalarValue() {
        return scalarValueBuilder_ != null || scalarValue_ != null;
      }
      /**
       * <code>optional .TypedValue scalar_value = 4;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValue getScalarValue() {
        if (scalarValueBuilder_ == null) {
          return scalarValue_ == null ? org.apache.calcite.avatica.proto.Common.TypedValue.getDefaultInstance() : scalarValue_;
        } else {
          return scalarValueBuilder_.getMessage();
        }
      }
      /**
       * <code>optional .TypedValue scalar_value = 4;</code>
       */
      public Builder setScalarValue(org.apache.calcite.avatica.proto.Common.TypedValue value) {
        if (scalarValueBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          scalarValue_ = value;
          onChanged();
        } else {
          scalarValueBuilder_.setMessage(value);
        }

        return this;
      }
      /**
       * <code>optional .TypedValue scalar_value = 4;</code>
       */
      public Builder setScalarValue(
          org.apache.calcite.avatica.proto.Common.TypedValue.Builder builderForValue) {
        if (scalarValueBuilder_ == null) {
          scalarValue_ = builderForValue.build();
          onChanged();
        } else {
          scalarValueBuilder_.setMessage(builderForValue.build());
        }

        return this;
      }
      /**
       * <code>optional .TypedValue scalar_value = 4;</code>
       */
      public Builder mergeScalarValue(org.apache.calcite.avatica.proto.Common.TypedValue value) {
        if (scalarValueBuilder_ == null) {
          if (scalarValue_ != null) {
            scalarValue_ =
              org.apache.calcite.avatica.proto.Common.TypedValue.newBuilder(scalarValue_).mergeFrom(value).buildPartial();
          } else {
            scalarValue_ = value;
          }
          onChanged();
        } else {
          scalarValueBuilder_.mergeFrom(value);
        }

        return this;
      }
      /**
       * <code>optional .TypedValue scalar_value = 4;</code>
       */
      public Builder clearScalarValue() {
        if (scalarValueBuilder_ == null) {
          scalarValue_ = null;
          onChanged();
        } else {
          scalarValue_ = null;
          scalarValueBuilder_ = null;
        }

        return this;
      }
      /**
       * <code>optional .TypedValue scalar_value = 4;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValue.Builder getScalarValueBuilder() {
        
        onChanged();
        return getScalarValueFieldBuilder().getBuilder();
      }
      /**
       * <code>optional .TypedValue scalar_value = 4;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder getScalarValueOrBuilder() {
        if (scalarValueBuilder_ != null) {
          return scalarValueBuilder_.getMessageOrBuilder();
        } else {
          return scalarValue_ == null ?
              org.apache.calcite.avatica.proto.Common.TypedValue.getDefaultInstance() : scalarValue_;
        }
      }
      /**
       * <code>optional .TypedValue scalar_value = 4;</code>
       */
      private com.google.protobuf.SingleFieldBuilderV3<
          org.apache.calcite.avatica.proto.Common.TypedValue, org.apache.calcite.avatica.proto.Common.TypedValue.Builder, org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder> 
          getScalarValueFieldBuilder() {
        if (scalarValueBuilder_ == null) {
          scalarValueBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
              org.apache.calcite.avatica.proto.Common.TypedValue, org.apache.calcite.avatica.proto.Common.TypedValue.Builder, org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder>(
                  getScalarValue(),
                  getParentForChildren(),
                  isClean());
          scalarValue_ = null;
        }
        return scalarValueBuilder_;
      }
      public final Builder setUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return this;
      }

      public final Builder mergeUnknownFields(
          final com.google.protobuf.UnknownFieldSet unknownFields) {
        return this;
      }


      // @@protoc_insertion_point(builder_scope:ColumnValue)
    }

    // @@protoc_insertion_point(class_scope:ColumnValue)
    private static final org.apache.calcite.avatica.proto.Common.ColumnValue DEFAULT_INSTANCE;
    static {
      DEFAULT_INSTANCE = new org.apache.calcite.avatica.proto.Common.ColumnValue();
    }

    public static org.apache.calcite.avatica.proto.Common.ColumnValue getDefaultInstance() {
      return DEFAULT_INSTANCE;
    }

    private static final com.google.protobuf.Parser<ColumnValue>
        PARSER = new com.google.protobuf.AbstractParser<ColumnValue>() {
      public ColumnValue parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
          return new ColumnValue(input, extensionRegistry);
      }
    };

    public static com.google.protobuf.Parser<ColumnValue> parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser<ColumnValue> getParserForType() {
      return PARSER;
    }

    public org.apache.calcite.avatica.proto.Common.ColumnValue getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface TypedValueOrBuilder extends
      // @@protoc_insertion_point(interface_extends:TypedValue)
      com.google.protobuf.MessageOrBuilder {

    /**
     * <pre>
     * The actual type that was serialized in the general attribute below
     * </pre>
     *
     * <code>optional .Rep type = 1;</code>
     */
    int getTypeValue();
    /**
     * <pre>
     * The actual type that was serialized in the general attribute below
     * </pre>
     *
     * <code>optional .Rep type = 1;</code>
     */
    org.apache.calcite.avatica.proto.Common.Rep getType();

    /**
     * <pre>
     * boolean
     * </pre>
     *
     * <code>optional bool bool_value = 2;</code>
     */
    boolean getBoolValue();

    /**
     * <pre>
     * char/varchar
     * </pre>
     *
     * <code>optional string string_value = 3;</code>
     */
    java.lang.String getStringValue();
    /**
     * <pre>
     * char/varchar
     * </pre>
     *
     * <code>optional string string_value = 3;</code>
     */
    com.google.protobuf.ByteString
        getStringValueBytes();

    /**
     * <pre>
     * var-len encoding lets us shove anything from byte to long
     * </pre>
     *
     * <code>optional sint64 number_value = 4;</code>
     */
    long getNumberValue();

    /**
     * <pre>
     * includes numeric types and date/time types.
     * </pre>
     *
     * <code>optional bytes bytes_value = 5;</code>
     */
    com.google.protobuf.ByteString getBytesValue();

    /**
     * <pre>
     * big numbers
     * </pre>
     *
     * <code>optional double double_value = 6;</code>
     */
    double getDoubleValue();

    /**
     * <pre>
     * a null object
     * </pre>
     *
     * <code>optional bool null = 7;</code>
     */
    boolean getNull();

    /**
     * <pre>
     * The Array
     * </pre>
     *
     * <code>repeated .TypedValue array_value = 8;</code>
     */
    java.util.List<org.apache.calcite.avatica.proto.Common.TypedValue> 
        getArrayValueList();
    /**
     * <pre>
     * The Array
     * </pre>
     *
     * <code>repeated .TypedValue array_value = 8;</code>
     */
    org.apache.calcite.avatica.proto.Common.TypedValue getArrayValue(int index);
    /**
     * <pre>
     * The Array
     * </pre>
     *
     * <code>repeated .TypedValue array_value = 8;</code>
     */
    int getArrayValueCount();
    /**
     * <pre>
     * The Array
     * </pre>
     *
     * <code>repeated .TypedValue array_value = 8;</code>
     */
    java.util.List<? extends org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder> 
        getArrayValueOrBuilderList();
    /**
     * <pre>
     * The Array
     * </pre>
     *
     * <code>repeated .TypedValue array_value = 8;</code>
     */
    org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder getArrayValueOrBuilder(
        int index);

    /**
     * <pre>
     * If an Array, the representation for the array values
     * </pre>
     *
     * <code>optional .Rep component_type = 9;</code>
     */
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      public final boolean isInitialized() {
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      public Builder mergeFrom(
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        org.apache.calcite.avatica.proto.Common.TypedValue parsedMessage = null;
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          parsedMessage = (org.apache.calcite.avatica.proto.Common.TypedValue) e.getUnfinishedMessage();
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      private int type_ = 0;
      /**
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       * <pre>
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      /**
       * <pre>
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      /**
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        type_ = value.getNumber();
        onChanged();
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      /**
       * <pre>
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       * <code>optional .Rep type = 1;</code>
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      /**
       * <pre>
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       * </pre>
       *
       * <code>optional bool bool_value = 2;</code>
       */
      public Builder clearBoolValue() {
        
        boolValue_ = false;
        onChanged();
        return this;
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      private java.lang.Object stringValue_ = "";
      /**
       * <pre>
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       *
       * <code>optional string string_value = 3;</code>
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        java.lang.Object ref = stringValue_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs =
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          java.lang.String s = bs.toStringUtf8();
          stringValue_ = s;
          return s;
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      /**
       * <pre>
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      public com.google.protobuf.ByteString
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        java.lang.Object ref = stringValue_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
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          stringValue_ = b;
          return b;
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      /**
       * <pre>
       * char/varchar
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       * <code>optional string string_value = 3;</code>
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      public Builder setStringValue(
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        if (value == null) {
    throw new NullPointerException();
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        stringValue_ = value;
        onChanged();
        return this;
      }
      /**
       * <pre>
       * char/varchar
       * </pre>
       *
       * <code>optional string string_value = 3;</code>
       */
      public Builder clearStringValue() {
        
        stringValue_ = getDefaultInstance().getStringValue();
        onChanged();
        return this;
      }
      /**
       * <pre>
       * char/varchar
       * </pre>
       *
       * <code>optional string string_value = 3;</code>
       */
      public Builder setStringValueBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  checkByteStringIsUtf8(value);
        
        stringValue_ = value;
        onChanged();
        return this;
      }

      private long numberValue_ ;
      /**
       * <pre>
       * var-len encoding lets us shove anything from byte to long
       * </pre>
       *
       * <code>optional sint64 number_value = 4;</code>
       */
      public long getNumberValue() {
        return numberValue_;
      }
      /**
       * <pre>
       * var-len encoding lets us shove anything from byte to long
       * </pre>
       *
       * <code>optional sint64 number_value = 4;</code>
       */
      public Builder setNumberValue(long value) {
        
        numberValue_ = value;
        onChanged();
        return this;
      }
      /**
       * <pre>
       * var-len encoding lets us shove anything from byte to long
       * </pre>
       *
       * <code>optional sint64 number_value = 4;</code>
       */
      public Builder clearNumberValue() {
        
        numberValue_ = 0L;
        onChanged();
        return this;
      }

      private com.google.protobuf.ByteString bytesValue_ = com.google.protobuf.ByteString.EMPTY;
      /**
       * <pre>
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       * </pre>
       *
       * <code>optional bytes bytes_value = 5;</code>
       */
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        return bytesValue_;
      }
      /**
       * <pre>
       * includes numeric types and date/time types.
       * </pre>
       *
       * <code>optional bytes bytes_value = 5;</code>
       */
      public Builder setBytesValue(com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  
        bytesValue_ = value;
        onChanged();
        return this;
      }
      /**
       * <pre>
       * includes numeric types and date/time types.
       * </pre>
       *
       * <code>optional bytes bytes_value = 5;</code>
       */
      public Builder clearBytesValue() {
        
        bytesValue_ = getDefaultInstance().getBytesValue();
        onChanged();
        return this;
      }

      private double doubleValue_ ;
      /**
       * <pre>
       * big numbers
       * </pre>
       *
       * <code>optional double double_value = 6;</code>
       */
      public double getDoubleValue() {
        return doubleValue_;
      }
      /**
       * <pre>
       * big numbers
       * </pre>
       *
       * <code>optional double double_value = 6;</code>
       */
      public Builder setDoubleValue(double value) {
        
        doubleValue_ = value;
        onChanged();
        return this;
      }
      /**
       * <pre>
       * big numbers
       * </pre>
       *
       * <code>optional double double_value = 6;</code>
       */
      public Builder clearDoubleValue() {
        
        doubleValue_ = 0D;
        onChanged();
        return this;
      }

      private boolean null_ ;
      /**
       * <pre>
       * a null object
       * </pre>
       *
       * <code>optional bool null = 7;</code>
       */
      public boolean getNull() {
        return null_;
      }
      /**
       * <pre>
       * a null object
       * </pre>
       *
       * <code>optional bool null = 7;</code>
       */
      public Builder setNull(boolean value) {
        
        null_ = value;
        onChanged();
        return this;
      }
      /**
       * <pre>
       * a null object
       * </pre>
       *
       * <code>optional bool null = 7;</code>
       */
      public Builder clearNull() {
        
        null_ = false;
        onChanged();
        return this;
      }

      private java.util.List<org.apache.calcite.avatica.proto.Common.TypedValue> arrayValue_ =
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      private void ensureArrayValueIsMutable() {
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          arrayValue_ = new java.util.ArrayList<org.apache.calcite.avatica.proto.Common.TypedValue>(arrayValue_);
          bitField0_ |= 0x00000080;
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      private com.google.protobuf.RepeatedFieldBuilderV3<
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      /**
       * <pre>
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       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
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      public java.util.List<org.apache.calcite.avatica.proto.Common.TypedValue> getArrayValueList() {
        if (arrayValueBuilder_ == null) {
          return java.util.Collections.unmodifiableList(arrayValue_);
        } else {
          return arrayValueBuilder_.getMessageList();
        }
      }
      /**
       * <pre>
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       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
       */
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        if (arrayValueBuilder_ == null) {
          return arrayValue_.size();
        } else {
          return arrayValueBuilder_.getCount();
        }
      }
      /**
       * <pre>
       * The Array
       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValue getArrayValue(int index) {
        if (arrayValueBuilder_ == null) {
          return arrayValue_.get(index);
        } else {
          return arrayValueBuilder_.getMessage(index);
        }
      }
      /**
       * <pre>
       * The Array
       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
       */
      public Builder setArrayValue(
          int index, org.apache.calcite.avatica.proto.Common.TypedValue value) {
        if (arrayValueBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureArrayValueIsMutable();
          arrayValue_.set(index, value);
          onChanged();
        } else {
          arrayValueBuilder_.setMessage(index, value);
        }
        return this;
      }
      /**
       * <pre>
       * The Array
       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
       */
      public Builder setArrayValue(
          int index, org.apache.calcite.avatica.proto.Common.TypedValue.Builder builderForValue) {
        if (arrayValueBuilder_ == null) {
          ensureArrayValueIsMutable();
          arrayValue_.set(index, builderForValue.build());
          onChanged();
        } else {
          arrayValueBuilder_.setMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * <pre>
       * The Array
       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
       */
      public Builder addArrayValue(org.apache.calcite.avatica.proto.Common.TypedValue value) {
        if (arrayValueBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureArrayValueIsMutable();
          arrayValue_.add(value);
          onChanged();
        } else {
          arrayValueBuilder_.addMessage(value);
        }
        return this;
      }
      /**
       * <pre>
       * The Array
       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
       */
      public Builder addArrayValue(
          int index, org.apache.calcite.avatica.proto.Common.TypedValue value) {
        if (arrayValueBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureArrayValueIsMutable();
          arrayValue_.add(index, value);
          onChanged();
        } else {
          arrayValueBuilder_.addMessage(index, value);
        }
        return this;
      }
      /**
       * <pre>
       * The Array
       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
       */
      public Builder addArrayValue(
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        if (arrayValueBuilder_ == null) {
          ensureArrayValueIsMutable();
          arrayValue_.add(builderForValue.build());
          onChanged();
        } else {
          arrayValueBuilder_.addMessage(builderForValue.build());
        }
        return this;
      }
      /**
       * <pre>
       * The Array
       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
       */
      public Builder addArrayValue(
          int index, org.apache.calcite.avatica.proto.Common.TypedValue.Builder builderForValue) {
        if (arrayValueBuilder_ == null) {
          ensureArrayValueIsMutable();
          arrayValue_.add(index, builderForValue.build());
          onChanged();
        } else {
          arrayValueBuilder_.addMessage(index, builderForValue.build());
        }
        return this;
      }
      /**
       * <pre>
       * The Array
       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
       */
      public Builder addAllArrayValue(
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        if (arrayValueBuilder_ == null) {
          ensureArrayValueIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
              values, arrayValue_);
          onChanged();
        } else {
          arrayValueBuilder_.addAllMessages(values);
        }
        return this;
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      /**
       * <pre>
       * The Array
       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
       */
      public Builder clearArrayValue() {
        if (arrayValueBuilder_ == null) {
          arrayValue_ = java.util.Collections.emptyList();
          bitField0_ = (bitField0_ & ~0x00000080);
          onChanged();
        } else {
          arrayValueBuilder_.clear();
        }
        return this;
      }
      /**
       * <pre>
       * The Array
       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
       */
      public Builder removeArrayValue(int index) {
        if (arrayValueBuilder_ == null) {
          ensureArrayValueIsMutable();
          arrayValue_.remove(index);
          onChanged();
        } else {
          arrayValueBuilder_.remove(index);
        }
        return this;
      }
      /**
       * <pre>
       * The Array
       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValue.Builder getArrayValueBuilder(
          int index) {
        return getArrayValueFieldBuilder().getBuilder(index);
      }
      /**
       * <pre>
       * The Array
       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder getArrayValueOrBuilder(
          int index) {
        if (arrayValueBuilder_ == null) {
          return arrayValue_.get(index);  } else {
          return arrayValueBuilder_.getMessageOrBuilder(index);
        }
      }
      /**
       * <pre>
       * The Array
       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
       */
      public java.util.List<? extends org.apache.calcite.avatica.proto.Common.TypedValueOrBuilder> 
           getArrayValueOrBuilderList() {
        if (arrayValueBuilder_ != null) {
          return arrayValueBuilder_.getMessageOrBuilderList();
        } else {
          return java.util.Collections.unmodifiableList(arrayValue_);
        }
      }
      /**
       * <pre>
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       * </pre>
       *
       * <code>repeated .TypedValue array_value = 8;</code>
       */
      public org.apache.calcite.avatica.proto.Common.TypedValue.Builder addArrayValueBuilder() {
        return getArrayValueFieldBuilder().addBuilder(
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      }
      /**
       * <pre>
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       * </pre>
       *
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      public org.apache.calcite.avatica.proto.Common.TypedValue.Builder addArrayValueBuilder(
          int index) {
        return getArrayValueFieldBuilder().addBuilder(
            index, org.apache.calcite.avatica.proto.Common.TypedValue.getDefaultInstance());
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      /**
       * <pre>
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       * </pre>
       *
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      public java.util.List<org.apache.calcite.avatica.proto.Common.TypedValue.Builder> 
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        return getArrayValueFieldBuilder().getBuilderList();
      }
      private com.google.protobuf.RepeatedFieldBuilderV3<
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        if (arrayValueBuilder_ == null) {
          arrayValueBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
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                  ((bitField0_ & 0x00000080) == 0x00000080),
                  getParentForChildren(),
                  isClean());
          arrayValue_ = null;
        }
        return arrayValueBuilder_;
      }

      private int componentType_ = 0;
      /**
       * <pre>
       * If an Array, the representation for the array values
       * </pre>
       *
       * <code>optional .Rep component_type = 9;</code>
       */
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        return componentType_;
      }
      /**
       * <pre>
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       * </pre>
       *
       * <code>optional .Rep component_type = 9;</code>
       */
      public Builder setComponentTypeValue(int value) {
        componentType_ = value;
        onChanged();
        return this;
      }
      /**
       * <pre>
       * If an Array, the representation for the array values
       * </pre>
       *
       * <code>optional .Rep component_type = 9;</code>
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      public org.apache.calcite.avatica.proto.Common.Rep getComponentType() {
        org.apache.calcite.avatica.proto.Common.Rep result = org.apache.calcite.avatica.proto.Common.Rep.valueOf(componentType_);
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      }
      /**
       * <pre>
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       * </pre>
       *
       * <code>optional .Rep component_type = 9;</code>
       */
      public Builder setComponentType(org.apache.calcite.avatica.proto.Common.Rep value) {
        if (value == null) {
          throw new NullPointerException();
        }
        
        componentType_ = value.getNumber();
        onChanged();
        return this;
      }
      /**
       * <pre>
       * If an Array, the representation for the array values
       * </pre>
       *
       * <code>optional .Rep component_type = 9;</code>
       */
      public Builder clearComponentType() {
        
        componentType_ = 0;
        onChanged();
        return this;
      }

      private boolean implicitlyNull_ ;
      /**
       * <pre>
       * Differentiate between explicitly null (user-set) and implicitly null
       * </pre>
       *
       * <code>optional bool implicitly_null = 10;</code>
       */
      public boolean getImplicitlyNull() {
        return implicitlyNull_;
      }
      /**
       * <pre>
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       * </pre>
       *
       * <code>optional bool implicitly_null = 10;</code>
       */
      public Builder setImplicitlyNull(boolean value) {
        
        implicitlyNull_ = value;
        onChanged();
        return this;
      }
      /**
       * <pre>
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       * </pre>
       *
       * <code>optional bool implicitly_null = 10;</code>
       */
      public Builder clearImplicitlyNull() {
        
        implicitlyNull_ = false;
        onChanged();
        return this;
      }
      public final Builder setUnknownFields(
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      public final Builder mergeUnknownFields(
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      // @@protoc_insertion_point(builder_scope:TypedValue)
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    // @@protoc_insertion_point(class_scope:TypedValue)
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    public static org.apache.calcite.avatica.proto.Common.TypedValue getDefaultInstance() {
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    }

    private static final com.google.protobuf.Parser<TypedValue>
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      public TypedValue parsePartialFrom(
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          return new TypedValue(input, extensionRegistry);
      }
    };

    public static com.google.protobuf.Parser<TypedValue> parser() {
      return PARSER;
    }

    @java.lang.Override
    public com.google.protobuf.Parser<TypedValue> getParserForType() {
      return PARSER;
    }

    public org.apache.calcite.avatica.proto.Common.TypedValue getDefaultInstanceForType() {
      return DEFAULT_INSTANCE;
    }

  }

  public interface MetaDataOperationArgumentOrBuilder extends
      // @@protoc_insertion_point(interface_extends:MetaDataOperationArgument)
      com.google.protobuf.MessageOrBuilder {

    /**
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    // @@protoc_insertion_point(class_scope:MetaDataOperationArgument)
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    public static org.apache.calcite.avatica.proto.Common.QueryState parseFrom(
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      return PARSER.parseFrom(data);
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    public static org.apache.calcite.avatica.proto.Common.QueryState parseFrom(
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    public static org.apache.calcite.avatica.proto.Common.QueryState parseFrom(
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    public static org.apache.calcite.avatica.proto.Common.QueryState parseFrom(
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        if (other.getHasOp() != false) {
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      public Builder mergeFrom(
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          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        org.apache.calcite.avatica.proto.Common.QueryState parsedMessage = null;
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        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          parsedMessage = (org.apache.calcite.avatica.proto.Common.QueryState) e.getUnfinishedMessage();
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            mergeFrom(parsedMessage);
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        onChanged();
        return this;
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      /**
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       */
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        onChanged();
        return this;
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        type_ = 0;
        onChanged();
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          java.lang.String value) {
        if (value == null) {
    throw new NullPointerException();
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        sql_ = value;
        onChanged();
        return this;
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      /**
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        sql_ = getDefaultInstance().getSql();
        onChanged();
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        if (value == null) {
    throw new NullPointerException();
  }
  checkByteStringIsUtf8(value);
        
        sql_ = value;
        onChanged();
        return this;
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       * <code>optional .MetaDataOperation op = 3;</code>
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        onChanged();
        return this;
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       */
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        if (value == null) {
          throw new NullPointerException();
        }
        
        op_ = value.getNumber();
        onChanged();
        return this;
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      /**
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        onChanged();
        return this;
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      private java.util.List<org.apache.calcite.avatica.proto.Common.MetaDataOperationArgument> args_ =
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          ensureArgsIsMutable();
          com.google.protobuf.AbstractMessageLite.Builder.addAll(
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          argsBuilder_.addAllMessages(values);
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          args_ = java.util.Collections.emptyList();
          bitField0_ = (bitField0_ & ~0x00000008);
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        } else {
          argsBuilder_.clear();
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       * <code>repeated .MetaDataOperationArgument args = 4;</code>
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          ensureArgsIsMutable();
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