Package org.elasticsearch.xpack.esql.optimizer.rules.logical

Class PropagateEmptyRelation

java.lang.Object

org.elasticsearch.xpack.esql.rule.Rule<UnaryPlan,LogicalPlan>

org.elasticsearch.xpack.esql.rule.ParameterizedRule<UnaryPlan,LogicalPlan,LogicalOptimizerContext>

org.elasticsearch.xpack.esql.optimizer.rules.logical.OptimizerRules.ParameterizedOptimizerRule<UnaryPlan,LogicalOptimizerContext>

org.elasticsearch.xpack.esql.optimizer.rules.logical.PropagateEmptyRelation

All Implemented Interfaces:

OptimizerRules.LocalAware<UnaryPlan>

Direct Known Subclasses:

LocalPropagateEmptyRelation

public class PropagateEmptyRelation
extends OptimizerRules.ParameterizedOptimizerRule<UnaryPlan,LogicalOptimizerContext>
implements OptimizerRules.LocalAware<UnaryPlan>

Field Summary

Fields inherited from class org.elasticsearch.xpack.esql.rule.Rule

log

Constructor Summary

Constructors

Constructor	Description
PropagateEmptyRelation()

Method Summary

Modifier and Type	Method	Description
protected void	aggOutput(FoldContext foldCtx, NamedExpression agg, AggregateFunction aggFunc, BlockFactory blockFactory, List<Block> blocks)	The folded aggregation output - this variant is for the coordinator/final.
Rule<UnaryPlan,LogicalPlan>	local()	the local version of the rule.
protected LogicalPlan	rule(UnaryPlan plan, LogicalOptimizerContext ctx)

Methods inherited from class org.elasticsearch.xpack.esql.optimizer.rules.logical.OptimizerRules.ParameterizedOptimizerRule

apply

Methods inherited from class org.elasticsearch.xpack.esql.rule.ParameterizedRule

apply

Methods inherited from class org.elasticsearch.xpack.esql.rule.Rule

name, toString, typeToken

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

PropagateEmptyRelation

public PropagateEmptyRelation()

Method Details

rule

protected LogicalPlan rule(UnaryPlan plan,
 LogicalOptimizerContext ctx)

Specified by:

rule in class OptimizerRules.ParameterizedOptimizerRule<UnaryPlan,LogicalOptimizerContext>

aggOutput

protected void aggOutput(FoldContext foldCtx,
 NamedExpression agg,
 AggregateFunction aggFunc,
 BlockFactory blockFactory,
 List<Block> blocks)

The folded aggregation output - this variant is for the coordinator/final.

local

public Rule<UnaryPlan,LogicalPlan> local()

Description copied from interface: OptimizerRules.LocalAware

the local version of the rule. null if the rule should not be applied locally.

Specified by:

local in interface OptimizerRules.LocalAware<UnaryPlan>