org.apache.hadoop.hive.ql.optimizer.calcite.rules

Class HivePointLookupOptimizerRule.JoinCondition

java.lang.Object

org.apache.calcite.plan.RelOptRule

org.apache.hadoop.hive.ql.optimizer.calcite.rules.HivePointLookupOptimizerRule

org.apache.hadoop.hive.ql.optimizer.calcite.rules.HivePointLookupOptimizerRule.JoinCondition

Enclosing class:

HivePointLookupOptimizerRule

public static class HivePointLookupOptimizerRule.JoinCondition
extends HivePointLookupOptimizerRule

This optimization will take a Join or expression, and if its join condition contains an OR operator whose children are constant equality expressions, it will try to generate an IN clause (which is more efficient). If the OR operator contains AND operator children, the optimization might generate an IN clause that uses structs.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.optimizer.calcite.rules.HivePointLookupOptimizerRule

HivePointLookupOptimizerRule.FilterCondition, HivePointLookupOptimizerRule.JoinCondition, HivePointLookupOptimizerRule.RexMergeInClause, HivePointLookupOptimizerRule.RexTransformIntoInClause

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.optimizer.calcite.rules.HivePointLookupOptimizerRule

LOG, minNumORClauses

Fields inherited from class org.apache.calcite.plan.RelOptRule

description, operands, relBuilderFactory

Constructor Summary

Constructors

Constructor and Description
JoinCondition(int minNumORClauses)

Method Summary

Modifier and Type	Method and Description
protected org.apache.calcite.rel.RelNode	copyNode(org.apache.calcite.rel.AbstractRelNode node, org.apache.calcite.rex.RexNode newCondition)
void	onMatch(org.apache.calcite.plan.RelOptRuleCall call)

Methods inherited from class org.apache.hadoop.hive.ql.optimizer.calcite.rules.HivePointLookupOptimizerRule

analyzeCondition

Methods inherited from class org.apache.calcite.plan.RelOptRule

any, convert, convert, convertList, convertOperand, equals, equals, getOperand, getOperands, getOutConvention, getOutTrait, hashCode, matches, none, operand, operand, operand, operand, operand, some, toString, unordered

Methods inherited from class java.lang.Object

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

Constructor Detail

JoinCondition

public JoinCondition(int minNumORClauses)

Method Detail

onMatch

public void onMatch(org.apache.calcite.plan.RelOptRuleCall call)

Specified by:

onMatch in class org.apache.calcite.plan.RelOptRule

copyNode

protected org.apache.calcite.rel.RelNode copyNode(org.apache.calcite.rel.AbstractRelNode node,
                                                  org.apache.calcite.rex.RexNode newCondition)

Specified by:

copyNode in class HivePointLookupOptimizerRule