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

Class HiveProjectMergeRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

org.apache.calcite.plan.RelRule<org.apache.calcite.rel.rules.ProjectMergeRule.Config>

org.apache.calcite.rel.rules.ProjectMergeRule

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

All Implemented Interfaces:

org.apache.calcite.rel.rules.TransformationRule

public class HiveProjectMergeRule
extends org.apache.calcite.rel.rules.ProjectMergeRule

ProjectMergeRule merges a Project into another Project, provided the projects aren't projecting identical sets of input references.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.rel.rules.ProjectMergeRule

org.apache.calcite.rel.rules.ProjectMergeRule.Config

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

org.apache.calcite.plan.RelRule.Done, org.apache.calcite.plan.RelRule.MatchHandler<R extends org.apache.calcite.plan.RelOptRule>, org.apache.calcite.plan.RelRule.OperandBuilder, org.apache.calcite.plan.RelRule.OperandDetailBuilder<R extends org.apache.calcite.rel.RelNode>, org.apache.calcite.plan.RelRule.OperandTransform

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

org.apache.calcite.plan.RelOptRule.ConverterRelOptRuleOperand

Field Summary

Fields

Modifier and Type	Field and Description
static HiveProjectMergeRule	INSTANCE
static HiveProjectMergeRule	INSTANCE_NO_FORCE

Fields inherited from class org.apache.calcite.rel.rules.ProjectMergeRule

DEFAULT_BLOAT

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

config

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

description, operands, relBuilderFactory

Method Summary

Modifier and Type	Method and Description
boolean	matches(org.apache.calcite.plan.RelOptRuleCall call)
void	onMatch(org.apache.calcite.plan.RelOptRuleCall call)

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

any, convert, convert, convertList, convertOperand, convertOperand, equals, equals, getOperand, getOperands, getOutConvention, getOutTrait, hashCode, 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

Field Detail

INSTANCE

public static final HiveProjectMergeRule INSTANCE

INSTANCE_NO_FORCE

public static final HiveProjectMergeRule INSTANCE_NO_FORCE

Method Detail

matches

public boolean matches(org.apache.calcite.plan.RelOptRuleCall call)

Overrides:

matches in class org.apache.calcite.rel.rules.ProjectMergeRule

onMatch

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

Overrides:

onMatch in class org.apache.calcite.rel.rules.ProjectMergeRule