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

Class BeamProjectRel

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.core.Project

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

All Implemented Interfaces:

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

public class BeamProjectRel
extends org.apache.calcite.rel.core.Project
implements BeamRelNode

BeamRelNode to replace a Project node.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.rel.core.Project

org.apache.calcite.rel.core.Project.Flags

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.Project

exps

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

input

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

digest, id, rowType, traitSet

Constructor Summary

Constructors

Constructor and Description
BeamProjectRel(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traits, org.apache.calcite.rel.RelNode input, java.util.List<? extends org.apache.calcite.rex.RexNode> projects, org.apache.calcite.rel.type.RelDataType rowType) projects: RexLiteral, RexInputRef, RexCall.

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.rel.core.Project	copy(org.apache.calcite.plan.RelTraitSet traitSet, org.apache.calcite.rel.RelNode input, java.util.List<org.apache.calcite.rex.RexNode> projects, org.apache.calcite.rel.type.RelDataType rowType)
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.Project

accept, computeSelfCost, copy, copy, explainTerms, getChildExps, getFlags, getMapping, getMapping, getNamedProjects, getPartialMapping, getPermutation, getPermutation, getProjects, isBoxed, isMapping, isValid

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

childrenAccept, deriveRowType, estimateRowCount, getInput, getInputs, 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, getVariablesSet, 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

BeamProjectRel

public BeamProjectRel(org.apache.calcite.plan.RelOptCluster cluster,
                      org.apache.calcite.plan.RelTraitSet traits,
                      org.apache.calcite.rel.RelNode input,
                      java.util.List<? extends org.apache.calcite.rex.RexNode> projects,
                      org.apache.calcite.rel.type.RelDataType rowType)

projects: RexLiteral, RexInputRef, RexCall.

Method Detail

copy

public org.apache.calcite.rel.core.Project copy(org.apache.calcite.plan.RelTraitSet traitSet,
                                                org.apache.calcite.rel.RelNode input,
                                                java.util.List<org.apache.calcite.rex.RexNode> projects,
                                                org.apache.calcite.rel.type.RelDataType rowType)

Specified by:

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

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