Package org.apache.calcite.rel.core

Interface RelFactories.ProjectFactory

Enclosing class:

RelFactories

public static interface RelFactories.ProjectFactory

Can create a LogicalProject of the appropriate type for this rule's calling convention.

Method Summary

Modifier and Type	Method	Description
default RelNode	createProject(RelNode input, List<RelHint> hints, List<? extends RexNode> childExprs, @Nullable List<? extends @Nullable String> fieldNames)	Deprecated. Use createProject(RelNode, List, List, List, Set) instead
RelNode	createProject(RelNode input, List<RelHint> hints, List<? extends RexNode> childExprs, @Nullable List<? extends @Nullable String> fieldNames, Set<CorrelationId> variablesSet)	Creates a project.

Method Details

createProject

@Deprecated
default RelNode createProject(RelNode input,
 List<RelHint> hints,
 List<? extends RexNode> childExprs,
 @Nullable List<? extends @Nullable String> fieldNames)

Deprecated.

Use createProject(RelNode, List, List, List, Set) instead

Creates a project.

Parameters:

input - The input

hints - The hints

childExprs - The projection expressions

fieldNames - The projection field names

Returns:

a project

createProject

RelNode createProject(RelNode input,
 List<RelHint> hints,
 List<? extends RexNode> childExprs,
 @Nullable List<? extends @Nullable String> fieldNames,
 Set<CorrelationId> variablesSet)

Creates a project.

Parameters:

input - The input

hints - The hints

childExprs - The projection expressions

fieldNames - The projection field names

variablesSet - Correlating variables that are set when reading a row from the input, and which may be referenced from the projection expressions

Returns:

a project