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

Class HiveCardinalityPreservingJoinRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

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

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

public class HiveCardinalityPreservingJoinRule
extends HiveFieldTrimmerRule

Rule to trigger HiveCardinalityPreservingJoinOptimization on top of the plan.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.plan.RelOptRule

org.apache.calcite.plan.RelOptRule.ConverterRelOptRuleOperand

Field Summary

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

description, operands, relBuilderFactory

Constructor Summary

Constructors

Constructor and Description
HiveCardinalityPreservingJoinRule(double factor)

Method Summary

Modifier and Type	Method and Description
protected org.apache.calcite.rel.RelNode	trim(org.apache.calcite.plan.RelOptRuleCall call, org.apache.calcite.rel.RelNode node)

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

onMatch

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

HiveCardinalityPreservingJoinRule

public HiveCardinalityPreservingJoinRule(double factor)

Method Detail

trim

protected org.apache.calcite.rel.RelNode trim(org.apache.calcite.plan.RelOptRuleCall call,
                                              org.apache.calcite.rel.RelNode node)

Overrides:

trim in class HiveFieldTrimmerRule