org.apache.calcite.rel.mutable

Class MutableUnion

java.lang.Object

org.apache.calcite.rel.mutable.MutableRel

org.apache.calcite.rel.mutable.MutableMultiRel

org.apache.calcite.rel.mutable.MutableSetOp

org.apache.calcite.rel.mutable.MutableUnion

public class MutableUnion
extends MutableSetOp

Mutable equivalent of Union.

Field Summary

Fields inherited from class org.apache.calcite.rel.mutable.MutableSetOp

all

Fields inherited from class org.apache.calcite.rel.mutable.MutableMultiRel

inputs

Fields inherited from class org.apache.calcite.rel.mutable.MutableRel

cluster, ordinalInParent, PAIRWISE_STRING_EQUIVALENCE, parent, rowType, STRING_EQUIVALENCE, type

Constructor Summary

Constructors

Modifier	Constructor and Description
private	MutableUnion(RelOptCluster cluster, RelDataType rowType, List<MutableRel> inputs, boolean all)

Method Summary

Modifier and Type	Method and Description
MutableRel	clone()
StringBuilder	digest(StringBuilder buf)
static MutableUnion	of(RelDataType rowType, List<MutableRel> inputs, boolean all) Creates a MutableUnion.

Methods inherited from class org.apache.calcite.rel.mutable.MutableSetOp

equals, hashCode, isAll

Methods inherited from class org.apache.calcite.rel.mutable.MutableMultiRel

childrenAccept, cloneChildren, getInputs, setInput

Methods inherited from class org.apache.calcite.rel.mutable.MutableRel

deep, getParent, replaceInParent, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

MutableUnion

private MutableUnion(RelOptCluster cluster,
                     RelDataType rowType,
                     List<MutableRel> inputs,
                     boolean all)

Method Detail

of

public static MutableUnion of(RelDataType rowType,
                              List<MutableRel> inputs,
                              boolean all)

Creates a MutableUnion.

Parameters:

rowType - Row type

inputs - Input relational expressions

all - Whether the union result should include all rows or eliminate duplicates from input relational expressions

digest

public StringBuilder digest(StringBuilder buf)

Specified by:

digest in class MutableRel

clone

public MutableRel clone()

Specified by:

clone in class MutableRel