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

Class BeamTableFunctionScanRel

java.lang.Object

org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.AbstractRelNode

org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.core.TableFunctionScan

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

All Implemented Interfaces:

java.lang.Cloneable, BeamRelNode, org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.plan.RelOptNode, org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.RelNode

public class BeamTableFunctionScanRel
extends org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.core.TableFunctionScan
implements BeamRelNode

BeamRelNode to replace TableFunctionScan. Currently this class limits to support table-valued function for streaming windowing.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.RelNode

org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.RelNode.Context

Field Summary

Fields inherited from class org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.core.TableFunctionScan

columnMappings

Fields inherited from class org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.AbstractRelNode

digest, id, rowType, traitSet

Constructor Summary

Constructors

Constructor and Description

BeamTableFunctionScanRel(org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.plan.RelOptCluster cluster, org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.plan.RelTraitSet traitSet, java.util.List<org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.RelNode> inputs, org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rex.RexNode rexCall, java.lang.reflect.Type elementType, org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.type.RelDataType rowType, java.util.Set<org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.metadata.RelColumnMapping> columnMappings)

Method Summary

Modifier and Type	Method and Description
BeamCostModel	beamComputeSelfCost(org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.plan.RelOptPlanner planner, org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.metadata.RelMetadataQuery mq) This method is called by org.apache.beam.sdk.extensions.sql.impl.CalciteQueryPlanner.NonCumulativeCostImpl.
PTransform<PCollectionList<Row>,PCollection<Row>>	buildPTransform()
org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.core.TableFunctionScan	copy(org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.plan.RelTraitSet traitSet, java.util.List<org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.RelNode> list, org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rex.RexNode rexNode, java.lang.reflect.Type type, org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.type.RelDataType relDataType, java.util.Set<org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.metadata.RelColumnMapping> set)
NodeStats	estimateNodeStats(org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.metadata.RelMetadataQuery mq) This method is called by org.apache.beam.sdk.extensions.sql.impl.planner.RelMdNodeStats.

Methods inherited from class org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.core.TableFunctionScan

accept, copy, estimateRowCount, explainTerms, getCall, getChildExps, getColumnMappings, getElementType, getInputs, replaceInput

Methods inherited from class org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.AbstractRelNode

accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeDigest, computeSelfCost, computeSelfCost, deriveRowType, explain, 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.beam.sdk.extensions.sql.impl.rel.BeamRelNode

getPCollectionInputs, getPipelineOptions, isBounded

Methods inherited from interface org.apache.beam.vendor.calcite.v1_20_0.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.beam.vendor.calcite.v1_20_0.org.apache.calcite.plan.RelOptNode

getCluster, getDescription, getDigest, getId, getTraitSet

Constructor Detail

BeamTableFunctionScanRel

public BeamTableFunctionScanRel(org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.plan.RelOptCluster cluster,
                                org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.plan.RelTraitSet traitSet,
                                java.util.List<org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.RelNode> inputs,
                                org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rex.RexNode rexCall,
                                java.lang.reflect.Type elementType,
                                org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.type.RelDataType rowType,
                                java.util.Set<org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.metadata.RelColumnMapping> columnMappings)

Method Detail

copy

public org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.core.TableFunctionScan copy(org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.plan.RelTraitSet traitSet,
                                                                                                 java.util.List<org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.RelNode> list,
                                                                                                 org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rex.RexNode rexNode,
                                                                                                 java.lang.reflect.Type type,
                                                                                                 org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.type.RelDataType relDataType,
                                                                                                 java.util.Set<org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.metadata.RelColumnMapping> set)

Specified by:

copy in class org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.core.TableFunctionScan

buildPTransform

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

Specified by:

buildPTransform in interface BeamRelNode

estimateNodeStats

public NodeStats estimateNodeStats(org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.metadata.RelMetadataQuery mq)

Description copied from interface: BeamRelNode

This method is called by org.apache.beam.sdk.extensions.sql.impl.planner.RelMdNodeStats. This is currently only used in SQLTransform Path (and not JDBC path). When a RelNode wants to calculate its BeamCost or estimate its NodeStats, it may need NodeStat of its inputs. However, it should not call this directly (because maybe its inputs are not physical yet). It should call BeamSqlRelUtils.getNodeStats( org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.RelNode, org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.metadata.RelMetadataQuery) instead.

Specified by:

estimateNodeStats in interface BeamRelNode

beamComputeSelfCost

public BeamCostModel beamComputeSelfCost(org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.plan.RelOptPlanner planner,
                                         org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rel.metadata.RelMetadataQuery mq)

Description copied from interface: BeamRelNode

This method is called by org.apache.beam.sdk.extensions.sql.impl.CalciteQueryPlanner.NonCumulativeCostImpl. This is currently only used in SQLTransform Path (and not JDBC path). This is needed when Calcite Query Planner wants to get the cost of a plan. Instead of calling this directly for a node, if we needed that it should be obtained by calling mq.getNonCumulativeCost. This way RelMetadataQuery will call this method instead of ComputeSelfCost if the handler is set correctly (see org.apache.beam.sdk.extensions.sql.impl.CalciteQueryPlanner#convertToBeamRel(String))

Specified by:

beamComputeSelfCost in interface BeamRelNode