Package org.apache.calcite.sql.validate

Class SqlValidatorImpl.Permute

java.lang.Object

org.apache.calcite.sql.validate.SqlValidatorImpl.Permute

Enclosing class:

SqlValidatorImpl

private class SqlValidatorImpl.Permute
extends java.lang.Object

Permutation of fields in NATURAL JOIN or USING.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) RelDataType	rowType
(package private) java.util.List<ImmutableIntList>	sources
(package private) boolean	trivial

Constructor Summary

Constructors

Constructor	Description
Permute(SqlNode from, int offset)

Method Summary

Modifier and Type	Method	Description
private RelDataTypeField	field(java.lang.String name)
void	permute(java.util.List<SqlNode> selectItems, java.util.List<java.util.Map.Entry<java.lang.String,RelDataType>> fields)	Moves fields according to the permutation.
private java.util.List<java.lang.String>	usingNames(SqlJoin join)	Returns the set of field names in the join condition specified by USING or implicitly by NATURAL, de-duplicated and in order.

Methods inherited from class java.lang.Object

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

Field Detail

sources

final java.util.List<ImmutableIntList> sources

rowType

final RelDataType rowType

trivial

final boolean trivial

Constructor Detail

Permute

Permute(SqlNode from,
        int offset)

Method Detail

field

private RelDataTypeField field(java.lang.String name)

usingNames

private java.util.List<java.lang.String> usingNames(SqlJoin join)

Returns the set of field names in the join condition specified by USING or implicitly by NATURAL, de-duplicated and in order.

permute

public void permute(java.util.List<SqlNode> selectItems,
                    java.util.List<java.util.Map.Entry<java.lang.String,RelDataType>> fields)

Moves fields according to the permutation.