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

Class HiveSemiJoinRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

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

Direct Known Subclasses:

HiveSemiJoinRule.HiveAggregateToSemiJoinRule, HiveSemiJoinRule.HiveProjectToSemiJoinRule

public abstract class HiveSemiJoinRule
extends org.apache.calcite.plan.RelOptRule

Planner rule that creates a SemiJoinRule from a Join on top of a LogicalAggregate. TODO Remove this rule and use Calcite's SemiJoinRule. Not possible currently since Calcite doesnt use RelBuilder for this rule and we want to generate HiveSemiJoin rel here.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HiveSemiJoinRule.HiveAggregateToSemiJoinRule SemiJoinRule that matches a Aggregate on top of a Join with an Aggregate as its right child.
static class	HiveSemiJoinRule.HiveProjectToSemiJoinRule SemiJoinRule that matches a Project on top of a Join with an Aggregate as its right child.

Field Summary

Fields

Modifier and Type	Field and Description
static HiveSemiJoinRule.HiveAggregateToSemiJoinRule	INSTANCE_AGGREGATE
static HiveSemiJoinRule.HiveProjectToSemiJoinRule	INSTANCE_PROJECT
protected static org.slf4j.Logger	LOG

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

description, operands, relBuilderFactory

Method Summary

Modifier and Type	Method and Description
protected void	perform(org.apache.calcite.plan.RelOptRuleCall call, org.apache.calcite.util.ImmutableBitSet topRefs, org.apache.calcite.rel.RelNode topOperator, org.apache.calcite.rel.core.Join join, org.apache.calcite.rel.RelNode left, org.apache.calcite.rel.core.Aggregate aggregate)

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

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

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static final org.slf4j.Logger LOG

INSTANCE_PROJECT

public static final HiveSemiJoinRule.HiveProjectToSemiJoinRule INSTANCE_PROJECT

INSTANCE_AGGREGATE

public static final HiveSemiJoinRule.HiveAggregateToSemiJoinRule INSTANCE_AGGREGATE

Method Detail

perform

protected void perform(org.apache.calcite.plan.RelOptRuleCall call,
                       org.apache.calcite.util.ImmutableBitSet topRefs,
                       org.apache.calcite.rel.RelNode topOperator,
                       org.apache.calcite.rel.core.Join join,
                       org.apache.calcite.rel.RelNode left,
                       org.apache.calcite.rel.core.Aggregate aggregate)