Package org.elasticsearch.xpack.esql.plan.logical.local

Class ResolvingProject

java.lang.Object

org.elasticsearch.xpack.esql.core.tree.Node<LogicalPlan>

org.elasticsearch.xpack.esql.plan.QueryPlan<LogicalPlan>

org.elasticsearch.xpack.esql.plan.logical.LogicalPlan

org.elasticsearch.xpack.esql.plan.logical.UnaryPlan

org.elasticsearch.xpack.esql.plan.logical.Project

org.elasticsearch.xpack.esql.plan.logical.local.EsqlProject

org.elasticsearch.xpack.esql.plan.logical.local.ResolvingProject

All Implemented Interfaces:

NamedWriteable, Writeable, Resolvable, SortAgnostic, SortPreserving, Streaming

public class ResolvingProject
extends EsqlProject

This version of Project saves part of its state for computing its projections based on its child's output. This avoids the problem that once the projections are computed, we don't know which pattern was used to generate them. This is important when dealing with unmapped fields: E.g. in SET unmapped_fields="nullify"; FROM idx | KEEP foo* | WHERE foo_bar > 10, if foo_bar is not mapped, we need to inject a NULL literal for it before the KEEP. It's correct to update the projection of the KEEP to include this new attribute because the pattern foo* matches it. But if the pattern was foo_baz, it would be incorrect to do so.

Nested Class Summary

Nested classes/interfaces inherited from class org.elasticsearch.xpack.esql.plan.logical.LogicalPlan

LogicalPlan.Stage

Nested classes/interfaces inherited from interface org.elasticsearch.common.io.stream.Writeable

Writeable.Reader<V>, Writeable.Writer<V>

Field Summary

Fields inherited from class org.elasticsearch.xpack.esql.plan.logical.local.EsqlProject

ENTRY

Fields inherited from class org.elasticsearch.xpack.esql.core.tree.Node

TO_STRING_MAX_WIDTH

Constructor Summary

Constructors

Constructor	Description
ResolvingProject(Source source, LogicalPlan child, Function<List<Attribute>,List<? extends NamedExpression>> resolver)

Method Summary

Modifier and Type	Method	Description
EsqlProject	asEsqlProject()
boolean	equals(Object obj)
String	getWriteableName()
int	hashCode()
protected NodeInfo<Project>	info()	Normally, you want to use one of the static create methods to implement this.
ResolvingProject	replaceChild(LogicalPlan newChild)
Function<List<Attribute>,List<? extends NamedExpression>>	resolver()
Project	withProjections(List<? extends NamedExpression> projections)

Methods inherited from class org.elasticsearch.xpack.esql.plan.logical.local.EsqlProject

expressionsResolved, writeTo

Methods inherited from class org.elasticsearch.xpack.esql.plan.logical.Project

output, projections, resolved

Methods inherited from class org.elasticsearch.xpack.esql.plan.logical.UnaryPlan

child, inputSet, outputSet, replaceChildren

Methods inherited from class org.elasticsearch.xpack.esql.plan.logical.LogicalPlan

analyzed, childrenResolved, optimized, preAnalyzed, preOptimized, setAnalyzed, setOptimized, setPreAnalyzed, setPreOptimized

Methods inherited from class org.elasticsearch.xpack.esql.plan.QueryPlan

computeExpressions, computeReferences, expressions, forEachExpression, forEachExpression, forEachExpressionDown, forEachExpressionUp, references, transformExpressionsDown, transformExpressionsDown, transformExpressionsOnly, transformExpressionsOnly, transformExpressionsOnlyUp, transformExpressionsUp, transformExpressionsUp

Methods inherited from class org.elasticsearch.xpack.esql.core.tree.Node

anyMatch, children, collect, collect, collect, collectFirstChildren, collectLeaves, doCollectFirst, forEachDown, forEachDown, forEachDownMayReturnEarly, forEachProperty, forEachPropertyDown, forEachPropertyOnly, forEachPropertyUp, forEachUp, forEachUp, nodeName, nodeProperties, nodeString, propertiesToString, replaceChildrenSameSize, source, sourceLocation, sourceText, toString, transformChildren, transformDown, transformDown, transformDown, transformNodeProps, transformPropertiesDown, transformPropertiesOnly, transformPropertiesUp, transformUp, transformUp, transformUp

Methods inherited from class java.lang.Object

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

Constructor Details

ResolvingProject

public ResolvingProject(Source source,
 LogicalPlan child,
 Function<List<Attribute>,List<? extends NamedExpression>> resolver)

Method Details

getWriteableName

public String getWriteableName()

Specified by:

getWriteableName in interface NamedWriteable

Overrides:

getWriteableName in class EsqlProject

resolver

public Function<List<Attribute>,List<? extends NamedExpression>> resolver()

info

protected NodeInfo<Project> info()

Description copied from class: Node

Normally, you want to use one of the static create methods to implement this.

For QueryPlans, it is very important that the properties contain all of the expressions and references relevant to this node, and that all the properties are used in the provided constructor; otherwise query plan transformations like QueryPlan#transformExpressionsOnly(Function) will not have an effect.

Overrides:

info in class EsqlProject

replaceChild

public ResolvingProject replaceChild(LogicalPlan newChild)

Overrides:

replaceChild in class EsqlProject

withProjections

public Project withProjections(List<? extends NamedExpression> projections)

Overrides:

withProjections in class EsqlProject

hashCode

public int hashCode()

Overrides:

hashCode in class Project

equals

public boolean equals(Object obj)

Overrides:

equals in class Project

asEsqlProject

public EsqlProject asEsqlProject()