org.apache.calcite.adapter.pig

Class PigJoin

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.BiRel

org.apache.calcite.rel.core.Join

org.apache.calcite.adapter.pig.PigJoin

All Implemented Interfaces:

Cloneable, PigRel, org.apache.calcite.plan.RelOptNode, org.apache.calcite.rel.hint.Hintable, org.apache.calcite.rel.RelNode

public class PigJoin
extends org.apache.calcite.rel.core.Join
implements PigRel

Implementation of Join in Pig calling convention.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.calcite.adapter.pig.PigRel

PigRel.Implementor

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, hints, 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

Fields inherited from interface org.apache.calcite.adapter.pig.PigRel

CONVENTION

Constructor Summary

Constructors

Constructor and Description
PigJoin(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, org.apache.calcite.rel.core.JoinRelType joinType) Creates a PigJoin.

Method Summary

Modifier and Type	Method and Description
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)
org.apache.calcite.plan.RelOptTable	getTable() The Pig alias of the joined relation will have the same name as one from the left side of the join.
void	implement(PigRel.Implementor implementor) Converts this node to a Pig Latin statement.

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

accept, analyzeCondition, computeSelfCost, copy, createJoinType, deepEquals0, deepHashCode0, deriveJoinRowType, deriveRowType, estimateJoinedRows, estimateRowCount, explainTerms, getCondition, getHints, 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, deepEquals, deepHashCode, equals, explain, getCluster, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getRelDigest, getRelTypeName, getRowType, getTraitSet, hashCode, isEnforcer, metadata, onRegister, recomputeDigest, register, sole, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

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

accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeSelfCost, copy, deepEquals, deepHashCode, estimateRowCount, explain, explain, fieldIsNullable, getConvention, getCorrelVariable, getDigest, getExpectedInputRowType, getInput, getInputs, getRelDigest, getRelTypeName, getRowType, getVariablesSet, isEnforcer, isValid, metadata, onRegister, recomputeDigest, register, replaceInput

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

getCluster, getDescription, getId, getTraitSet

Methods inherited from interface org.apache.calcite.rel.hint.Hintable

attachHints, withHints

Constructor Detail

PigJoin

public PigJoin(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,
               org.apache.calcite.rel.core.JoinRelType joinType)

Creates a PigJoin.

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

implement

public void implement(PigRel.Implementor implementor)

Description copied from interface: PigRel

Converts this node to a Pig Latin statement.

Specified by:

implement in interface PigRel

getTable

public org.apache.calcite.plan.RelOptTable getTable()

The Pig alias of the joined relation will have the same name as one from the left side of the join.

Specified by:

getTable in interface org.apache.calcite.rel.RelNode

Overrides:

getTable in class org.apache.calcite.rel.AbstractRelNode