org.apache.calcite.rel.core

Class Intersect

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.core.SetOp

org.apache.calcite.rel.core.Intersect

All Implemented Interfaces:

Cloneable, org.apache.calcite.plan.RelOptNode, org.apache.calcite.rel.hint.Hintable, org.apache.calcite.rel.RelNode

Direct Known Subclasses:

LogicalIntersect

public abstract class Intersect
extends SetOp

Relational expression that returns the intersection of the rows of its inputs.

Temporarily copy from calcite to cherry-pick [CALCITE-5107] and will be removed when upgrade the latest calcite.

If "all" is true, performs then multiset intersection; otherwise, performs set set intersection (implying no duplicates in the results).

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.calcite.rel.RelNode

org.apache.calcite.rel.RelNode.Context

Field Summary

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

all, hints, inputs, kind

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

digest, id, rowType, traitSet

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Intersect(org.apache.calcite.rel.RelInput input) Creates an Intersect by parsing serialized output.
	Intersect(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traits, List<org.apache.calcite.rel.hint.RelHint> hints, List<org.apache.calcite.rel.RelNode> inputs, boolean all) Creates an Intersect.
	Intersect(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traits, List<org.apache.calcite.rel.RelNode> inputs, boolean all) Creates an Intersect.

Method Summary

Modifier and Type	Method and Description
double	estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery mq)

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

copy, copy, deriveRowType, explainTerms, getHints, getInputs, isHomogeneous, replaceInput

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

accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeSelfCost, deepEquals, deepHashCode, equals, explain, getCluster, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getRelDigest, getRelTypeName, getRowType, getTable, getTraitSet, getVariablesSet, hashCode, isEnforcer, isValid, metadata, onRegister, recomputeDigest, register, sole, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.rel.hint.Hintable

attachHints, withHints

Methods inherited from interface org.apache.calcite.rel.RelNode

explain

Constructor Detail

Intersect

public Intersect(org.apache.calcite.plan.RelOptCluster cluster,
                 org.apache.calcite.plan.RelTraitSet traits,
                 List<org.apache.calcite.rel.hint.RelHint> hints,
                 List<org.apache.calcite.rel.RelNode> inputs,
                 boolean all)

Creates an Intersect.

Intersect

public Intersect(org.apache.calcite.plan.RelOptCluster cluster,
                 org.apache.calcite.plan.RelTraitSet traits,
                 List<org.apache.calcite.rel.RelNode> inputs,
                 boolean all)

Creates an Intersect.

Intersect

protected Intersect(org.apache.calcite.rel.RelInput input)

Creates an Intersect by parsing serialized output.

Method Detail

estimateRowCount

public double estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery mq)

Specified by:

estimateRowCount in interface org.apache.calcite.rel.RelNode

Overrides:

estimateRowCount in class org.apache.calcite.rel.AbstractRelNode