org.apache.calcite.rel.logical

Class LogicalUnion

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.core.SetOp

org.apache.calcite.rel.core.Union

org.apache.calcite.rel.logical.LogicalUnion

All Implemented Interfaces:

Cloneable, RelOptNode, RelNode

public final class LogicalUnion
extends Union

Sub-class of Union not targeted at any particular engine or calling convention.

Field Summary

Fields inherited from class org.apache.calcite.rel.core.SetOp

all, inputs, kind

Fields inherited from class org.apache.calcite.rel.AbstractRelNode

digest, id, rowType, traitSet

Constructor Summary

Constructors

Constructor and Description
LogicalUnion(RelInput input) Creates a LogicalUnion by parsing serialized output.
LogicalUnion(RelOptCluster cluster, List<RelNode> inputs, boolean all) Deprecated.
LogicalUnion(RelOptCluster cluster, RelTraitSet traitSet, List<RelNode> inputs, boolean all) Creates a LogicalUnion.

Method Summary

Methods

Modifier and Type	Method and Description
RelNode	accept(RelShuttle shuttle) Accepts a visit from a shuttle.
LogicalUnion	copy(RelTraitSet traitSet, List<RelNode> inputs, boolean all)
static LogicalUnion	create(List<RelNode> inputs, boolean all) Creates a LogicalUnion.

Methods inherited from class org.apache.calcite.rel.core.Union

estimateRowCount, getRows

Methods inherited from class org.apache.calcite.rel.core.SetOp

copy, deriveRowType, explainTerms, getInputs, isHomogeneous, isKey, replaceInput

Methods inherited from class org.apache.calcite.rel.AbstractRelNode

accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeDigest, computeSelfCost, explain, getChildExps, getCluster, getCollationList, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getQuery, getRelTypeName, getRowType, getTable, getTraitSet, getVariablesStopped, isDistinct, isValid, metadata, onRegister, recomputeDigest, register, sole, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

LogicalUnion

public LogicalUnion(RelOptCluster cluster,
            RelTraitSet traitSet,
            List<RelNode> inputs,
            boolean all)

Creates a LogicalUnion.

Use create(java.util.List<org.apache.calcite.rel.RelNode>, boolean) unless you know what you're doing.

LogicalUnion

@Deprecated
public LogicalUnion(RelOptCluster cluster,
                       List<RelNode> inputs,
                       boolean all)

Deprecated.

LogicalUnion

public LogicalUnion(RelInput input)

Creates a LogicalUnion by parsing serialized output.

Method Detail

create

public static LogicalUnion create(List<RelNode> inputs,
                  boolean all)

Creates a LogicalUnion.

copy

public LogicalUnion copy(RelTraitSet traitSet,
                List<RelNode> inputs,
                boolean all)

Specified by:

copy in class SetOp

accept

public RelNode accept(RelShuttle shuttle)

Description copied from interface: RelNode

Accepts a visit from a shuttle.

Specified by:

accept in interface RelNode

Overrides:

accept in class AbstractRelNode

Parameters:

shuttle - Shuttle

Returns:

A copy of this node incorporating changes made by the shuttle to this node's children