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

Class BeamSideInputJoinRel

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.BiRel

org.apache.calcite.rel.core.Join

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

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

All Implemented Interfaces:

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

public class BeamSideInputJoinRel
extends BeamJoinRel

A BeamJoinRel which does sideinput Join

This Join Covers the case:

• BoundedTable JOIN UnboundedTable

sideInput is utilized to implement the join, so there are some constraints:

• FULL OUTER JOIN is not supported.
• If it's a LEFT OUTER JOIN, the unbounded table should on the left side.
• If it's a RIGHT OUTER JOIN, the unbounded table should on the right side.

General constraints:

• Only equi-join is supported.
• CROSS JOIN is not supported.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.beam.sdk.extensions.sql.impl.rel.BeamJoinRel

BeamJoinRel.ExtractJoinKeys

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.Join

condition, joinInfo, joinType, variablesSet

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

left, right

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

digest, id, rowType, traitSet

Constructor Summary

Constructors

Constructor and Description
BeamSideInputJoinRel(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traitSet, org.apache.calcite.rel.RelNode left, org.apache.calcite.rel.RelNode right, org.apache.calcite.rex.RexNode condition, java.util.Set<org.apache.calcite.rel.core.CorrelationId> variablesSet, org.apache.calcite.rel.core.JoinRelType joinType)

Method Summary

Modifier and Type	Method and Description
PTransform<PCollectionList<Row>,PCollection<Row>>	buildPTransform()
org.apache.calcite.rel.core.Join	copy(org.apache.calcite.plan.RelTraitSet traitSet, org.apache.calcite.rex.RexNode conditionExpr, org.apache.calcite.rel.RelNode left, org.apache.calcite.rel.RelNode right, org.apache.calcite.rel.core.JoinRelType joinType, boolean semiJoinDone)
PCollection<Row>	sideInputJoin(PCollection<KV<Row,Row>> extractedLeftRows, PCollection<KV<Row,Row>> extractedRightRows, Schema leftSchema, Schema rightSchema)

Methods inherited from class org.apache.beam.sdk.extensions.sql.impl.rel.BeamJoinRel

beamComputeSelfCost, buildNullSchema, containsSeekableInput, estimateNodeStats, getBoundednessOfRelNode, getPCollectionInputs, isJoinLegal, isSideInputLookupJoin, nonSeekableInputIndex, seekable, seekableInputIndex, setValueCoder

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

accept, analyzeCondition, computeSelfCost, copy, createJoinType, deriveJoinRowType, deriveRowType, estimateJoinedRows, estimateRowCount, explainTerms, getChildExps, getCondition, getJoinType, getSystemFieldList, getVariablesSet, isSemiJoin, isSemiJoinDone, isValid

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

childrenAccept, getInputs, getLeft, getRight, replaceInput

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

accept, collectVariablesSet, collectVariablesUsed, computeDigest, computeSelfCost, explain, getCluster, getCollationList, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getQuery, getRelTypeName, getRows, getRowType, getTable, getTraitSet, getVariablesStopped, isDistinct, isKey, 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.beam.sdk.extensions.sql.impl.rel.BeamRelNode

getPipelineOptions, isBounded

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

BeamSideInputJoinRel

public BeamSideInputJoinRel(org.apache.calcite.plan.RelOptCluster cluster,
                            org.apache.calcite.plan.RelTraitSet traitSet,
                            org.apache.calcite.rel.RelNode left,
                            org.apache.calcite.rel.RelNode right,
                            org.apache.calcite.rex.RexNode condition,
                            java.util.Set<org.apache.calcite.rel.core.CorrelationId> variablesSet,
                            org.apache.calcite.rel.core.JoinRelType joinType)

Method Detail

copy

public org.apache.calcite.rel.core.Join copy(org.apache.calcite.plan.RelTraitSet traitSet,
                                             org.apache.calcite.rex.RexNode conditionExpr,
                                             org.apache.calcite.rel.RelNode left,
                                             org.apache.calcite.rel.RelNode right,
                                             org.apache.calcite.rel.core.JoinRelType joinType,
                                             boolean semiJoinDone)

Specified by:

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

buildPTransform

public PTransform<PCollectionList<Row>,PCollection<Row>> buildPTransform()

sideInputJoin

public PCollection<Row> sideInputJoin(PCollection<KV<Row,Row>> extractedLeftRows,
                                      PCollection<KV<Row,Row>> extractedRightRows,
                                      Schema leftSchema,
                                      Schema rightSchema)