Package org.elasticsearch.xpack.esql.plan.physical

Class MergeExec

java.lang.Object

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

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

org.elasticsearch.xpack.esql.plan.physical.PhysicalPlan

org.elasticsearch.xpack.esql.plan.physical.MergeExec

All Implemented Interfaces:

NamedWriteable, Writeable

public class MergeExec
extends PhysicalPlan

Nested Class Summary

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.core.tree.Node

TO_STRING_MAX_WIDTH

Constructor Summary

Constructors

Constructor	Description
MergeExec(Source source, List<PhysicalPlan> children, List<Attribute> output)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
String	getWriteableName()
int	hashCode()
protected NodeInfo<MergeExec>	info()	Normally, you want to use one of the static create methods to implement this.
List<Attribute>	output()	The ordered list of attributes (i.e.
PhysicalPlan	replaceChildren(List<PhysicalPlan> newChildren)
List<LocalSupplier>	suppliers()	Extracts the children as a list of suppliers.
void	writeTo(StreamOutput out)

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

computeExpressions, computeReferences, expressions, forEachExpression, forEachExpression, forEachExpressionDown, forEachExpressionUp, inputSet, outputSet, 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

MergeExec

public MergeExec(Source source,
 List<PhysicalPlan> children,
 List<Attribute> output)

Method Details

suppliers

public List<LocalSupplier> suppliers()

Extracts the children as a list of suppliers. All children must be LocalSourceExec.

getWriteableName

public String getWriteableName()

writeTo

public void writeTo(StreamOutput out)
             throws IOException

Throws:

IOException

replaceChildren

public PhysicalPlan replaceChildren(List<PhysicalPlan> newChildren)

Specified by:

replaceChildren in class Node<PhysicalPlan>

info

protected NodeInfo<MergeExec> 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.

Specified by:

info in class Node<PhysicalPlan>

output

public List<Attribute> output()

Description copied from class: QueryPlan

The ordered list of attributes (i.e. columns) this plan produces when executed. Must be called only on resolved plans, otherwise may throw an exception or return wrong results.

Specified by:

output in class QueryPlan<PhysicalPlan>

hashCode

public int hashCode()

Specified by:

hashCode in class PhysicalPlan

equals

public boolean equals(Object o)

Specified by:

equals in class PhysicalPlan