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

Class ReorderLimitProjectAndOrderBy

java.lang.Object

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

org.elasticsearch.xpack.esql.optimizer.rules.logical.OptimizerRules.OptimizerRule<UnaryPlan>

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

public final class ReorderLimitProjectAndOrderBy
extends OptimizerRules.OptimizerRule<UnaryPlan>

This is to fix possible wrong orderings of Limit, Project and Order or LimitBy, Project and OrderBy. We should always end up with Limit on top of OrderBy so we can turn it into TopN We should always end up with LimitBy on top of OrderBy so we can turn it into TopNBy

Field Summary

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

log

Constructor Summary

Constructors

Constructor	Description
ReorderLimitProjectAndOrderBy()

Method Summary

Modifier and Type	Method	Description
LogicalPlan	rule(UnaryPlan plan)

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

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

ReorderLimitProjectAndOrderBy

public ReorderLimitProjectAndOrderBy()

Method Details

rule

public LogicalPlan rule(UnaryPlan plan)

Specified by:

rule in class OptimizerRules.OptimizerRule<UnaryPlan>