org.apache.flink.sql.parser.type

Class ExtendedSqlRowTypeNameSpec

java.lang.Object

org.apache.calcite.sql.SqlTypeNameSpec

org.apache.flink.sql.parser.type.ExtendedSqlRowTypeNameSpec

public class ExtendedSqlRowTypeNameSpec
extends org.apache.calcite.sql.SqlTypeNameSpec

A sql type name specification of ROW type.

The difference with SqlRowTypeNameSpec:

• Support comment syntax for every field
• Field data type default is nullable
• Support ROW type with empty fields, e.g. ROW()

Constructor Summary

Constructors

Constructor and Description
ExtendedSqlRowTypeNameSpec(org.apache.calcite.sql.parser.SqlParserPos pos, List<org.apache.calcite.sql.SqlIdentifier> fieldNames, List<org.apache.calcite.sql.SqlDataTypeSpec> fieldTypes, List<org.apache.calcite.sql.SqlCharStringLiteral> comments, boolean unparseAsStandard) Creates a ROW type specification.

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.rel.type.RelDataType	deriveType(org.apache.calcite.sql.validate.SqlValidator sqlValidator)
boolean	equalsDeep(org.apache.calcite.sql.SqlTypeNameSpec node, org.apache.calcite.util.Litmus litmus)
List<org.apache.calcite.sql.SqlCharStringLiteral>	getComments()
List<org.apache.calcite.sql.SqlIdentifier>	getFieldNames()
List<org.apache.calcite.sql.SqlDataTypeSpec>	getFieldTypes()
void	unparse(org.apache.calcite.sql.SqlWriter writer, int leftPrec, int rightPrec)
boolean	unparseAsStandard()

Methods inherited from class org.apache.calcite.sql.SqlTypeNameSpec

getParserPos, getTypeName

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExtendedSqlRowTypeNameSpec

public ExtendedSqlRowTypeNameSpec(org.apache.calcite.sql.parser.SqlParserPos pos,
                                  List<org.apache.calcite.sql.SqlIdentifier> fieldNames,
                                  List<org.apache.calcite.sql.SqlDataTypeSpec> fieldTypes,
                                  List<org.apache.calcite.sql.SqlCharStringLiteral> comments,
                                  boolean unparseAsStandard)

Creates a ROW type specification.

Parameters:

pos - parser position

fieldNames - field names

fieldTypes - field data types

comments - field comments

unparseAsStandard - whether to unparse as standard SQL style

Method Detail

getFieldNames

public List<org.apache.calcite.sql.SqlIdentifier> getFieldNames()

getFieldTypes

public List<org.apache.calcite.sql.SqlDataTypeSpec> getFieldTypes()

getComments

public List<org.apache.calcite.sql.SqlCharStringLiteral> getComments()

unparseAsStandard

public boolean unparseAsStandard()

unparse

public void unparse(org.apache.calcite.sql.SqlWriter writer,
                    int leftPrec,
                    int rightPrec)

Specified by:

unparse in class org.apache.calcite.sql.SqlTypeNameSpec

equalsDeep

public boolean equalsDeep(org.apache.calcite.sql.SqlTypeNameSpec node,
                          org.apache.calcite.util.Litmus litmus)

Specified by:

equalsDeep in class org.apache.calcite.sql.SqlTypeNameSpec

deriveType

public org.apache.calcite.rel.type.RelDataType deriveType(org.apache.calcite.sql.validate.SqlValidator sqlValidator)

Specified by:

deriveType in class org.apache.calcite.sql.SqlTypeNameSpec