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

Class BeamUnnestRel

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.BiRel

org.apache.calcite.rel.core.Correlate

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

All Implemented Interfaces:

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

public class BeamUnnestRel
extends org.apache.calcite.rel.core.Correlate
implements BeamRelNode

BeamRelNode to implement UNNEST, supporting specifically only Correlate with Uncollect.

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.Correlate

correlationId, joinType, requiredColumns

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
BeamUnnestRel(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traits, org.apache.calcite.rel.RelNode left, org.apache.calcite.rel.RelNode right, org.apache.calcite.rel.core.CorrelationId correlationId, org.apache.calcite.util.ImmutableBitSet requiredColumns, org.apache.calcite.sql.SemiJoinType joinType)

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.rel.core.Correlate	copy(org.apache.calcite.plan.RelTraitSet relTraitSet, org.apache.calcite.rel.RelNode left, org.apache.calcite.rel.RelNode right, org.apache.calcite.rel.core.CorrelationId correlationId, org.apache.calcite.util.ImmutableBitSet requireColumns, org.apache.calcite.sql.SemiJoinType joinType)
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.Correlate

computeSelfCost, copy, deriveRowType, explainTerms, getCorrelationId, getCorrelVariable, getJoinType, getRequiredColumns, getVariablesSet, 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, accept, collectVariablesSet, collectVariablesUsed, computeDigest, computeSelfCost, estimateRowCount, explain, getChildExps, getCluster, getCollationList, getConvention, 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.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

BeamUnnestRel

public BeamUnnestRel(org.apache.calcite.plan.RelOptCluster cluster,
                     org.apache.calcite.plan.RelTraitSet traits,
                     org.apache.calcite.rel.RelNode left,
                     org.apache.calcite.rel.RelNode right,
                     org.apache.calcite.rel.core.CorrelationId correlationId,
                     org.apache.calcite.util.ImmutableBitSet requiredColumns,
                     org.apache.calcite.sql.SemiJoinType joinType)

Method Detail

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

copy

public org.apache.calcite.rel.core.Correlate copy(org.apache.calcite.plan.RelTraitSet relTraitSet,
                                                  org.apache.calcite.rel.RelNode left,
                                                  org.apache.calcite.rel.RelNode right,
                                                  org.apache.calcite.rel.core.CorrelationId correlationId,
                                                  org.apache.calcite.util.ImmutableBitSet requireColumns,
                                                  org.apache.calcite.sql.SemiJoinType joinType)

Specified by:

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