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

Class PropagateUnmappedFields

java.lang.Object

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

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

public class PropagateUnmappedFields
extends Rule<LogicalPlan,LogicalPlan>

Pushes PotentiallyUnmappedKeywordEsField attributes down into EsRelation outputs so block loaders know to fetch from _source. Only those not yet declared in any EsRelation output are propagated — the gate is structural, not command-specific, so any future feature that introduces them above a relation is handled automatically. Today that is only INSIST.

N.B. When INSIST is sunset, this rule can be removed.

Field Summary

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

log

Constructor Summary

Constructors

Constructor	Description
PropagateUnmappedFields()

Method Summary

Modifier and Type	Method	Description
LogicalPlan	apply(LogicalPlan logicalPlan)

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

PropagateUnmappedFields

public PropagateUnmappedFields()

Method Details

apply

public LogicalPlan apply(LogicalPlan logicalPlan)

Specified by:

apply in class Rule<LogicalPlan,LogicalPlan>