org.apache.beam.sdk.extensions.sql.impl.rel

Class BeamIntersectRel

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.core.SetOp

org.apache.calcite.rel.core.Intersect

org.apache.beam.sdk.extensions.sql.impl.rel.BeamIntersectRel

All Implemented Interfaces:

java.lang.Cloneable, BeamRelNode, org.apache.calcite.plan.RelOptNode, org.apache.calcite.rel.RelNode

public class BeamIntersectRel
extends org.apache.calcite.rel.core.Intersect
implements BeamRelNode

BeamRelNode to replace a Intersect node.

This is used to combine two SELECT statements, but returns rows only from the first SELECT statement that are identical to a row in the second SELECT statement.

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, inputs, kind

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

digest, id, rowType, traitSet

Constructor Summary

Constructors

Constructor and Description
BeamIntersectRel(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traits, java.util.List<org.apache.calcite.rel.RelNode> inputs, boolean all)

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.rel.core.SetOp	copy(org.apache.calcite.plan.RelTraitSet traitSet, java.util.List<org.apache.calcite.rel.RelNode> inputs, boolean all)
PTransform<PCollectionTuple,PCollection<Row>>	toPTransform() A BeamRelNode is a recursive structure, the BeamQueryPlanner visits it with a DFS(Depth-First-Search) algorithm.

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

estimateRowCount

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

copy, deriveRowType, explainTerms, getInputs, isHomogeneous, replaceInput

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

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

Methods inherited from class java.lang.Object

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

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

accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeSelfCost, computeSelfCost, copy, estimateRowCount, explain, getChildExps, getCollationList, getConvention, getCorrelVariable, getExpectedInputRowType, getInput, getInputs, getQuery, getRelTypeName, getRows, getRowType, getTable, getVariablesSet, getVariablesStopped, isDistinct, isKey, isValid, isValid, metadata, onRegister, recomputeDigest, register, replaceInput

Methods inherited from interface org.apache.calcite.plan.RelOptNode

getCluster, getDescription, getDigest, getId, getTraitSet

Constructor Detail

BeamIntersectRel

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

Method Detail

copy

public org.apache.calcite.rel.core.SetOp copy(org.apache.calcite.plan.RelTraitSet traitSet,
                                              java.util.List<org.apache.calcite.rel.RelNode> inputs,
                                              boolean all)

Specified by:

copy in class org.apache.calcite.rel.core.SetOp

toPTransform

public PTransform<PCollectionTuple,PCollection<Row>> toPTransform()

Description copied from interface: BeamRelNode

A BeamRelNode is a recursive structure, the BeamQueryPlanner visits it with a DFS(Depth-First-Search) algorithm.

Specified by:

toPTransform in interface BeamRelNode