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ESQL: Reuse child outputSet inside the plan where possible #124611

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Merged
merged 6 commits into from
Mar 20, 2025
Merged

ESQL: Reuse child outputSet inside the plan where possible #124611

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fa5f2a8
ESQL: Reuse child outputSet inside the plan where possible
costin Mar 12, 2025
da09472
Update docs/changelog/124611.yaml
costin Mar 12, 2025
7bc1dbc
Move attributeSet reuse inside UnaryPlan(Exec)
costin Mar 12, 2025
172f73e
Merge branch 'main' into esql/reuse-outputset
costin Mar 15, 2025
ca48602
Removed unused method
costin Mar 20, 2025
f844805
Merge branch 'main' into esql/reuse-outputset
costin Mar 20, 2025
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5 changes: 5 additions & 0 deletions docs/changelog/124611.yaml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
pr: 124611
summary: Reuse child `outputSet` inside the plan where possible
area: ES|QL
type: enhancement
issues: []
10 changes: 10 additions & 0 deletions x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/plan/logical/UnaryPlan.java
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Expand Up @@ -7,6 +7,7 @@
package org.elasticsearch.xpack.esql.plan.logical;

import org.elasticsearch.xpack.esql.core.expression.Attribute;
import org.elasticsearch.xpack.esql.core.expression.AttributeSet;
import org.elasticsearch.xpack.esql.core.tree.Source;

import java.util.Collections;
Expand All @@ -20,6 +21,7 @@
public abstract class UnaryPlan extends LogicalPlan {

private final LogicalPlan child;
private AttributeSet lazyOutputSet;

protected UnaryPlan(Source source, LogicalPlan child) {
super(source, Collections.singletonList(child));
Expand All @@ -42,6 +44,14 @@ public List<Attribute> output() {
return child.output();
}

public AttributeSet outputSet() {
if (lazyOutputSet == null) {
List<Attribute> output = output();
lazyOutputSet = (output == child.output() ? child.outputSet() : new AttributeSet(output));
}
return lazyOutputSet;
}

@Override
public int hashCode() {
return Objects.hashCode(child());
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12 changes: 12 additions & 0 deletions x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/plan/physical/UnaryExec.java
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Expand Up @@ -8,6 +8,7 @@
package org.elasticsearch.xpack.esql.plan.physical;

import org.elasticsearch.xpack.esql.core.expression.Attribute;
import org.elasticsearch.xpack.esql.core.expression.AttributeSet;
import org.elasticsearch.xpack.esql.core.tree.Source;

import java.util.Collections;
Expand All @@ -17,6 +18,7 @@
public abstract class UnaryExec extends PhysicalPlan {

private final PhysicalPlan child;
private AttributeSet lazyOutputSet;

protected UnaryExec(Source source, PhysicalPlan child) {
super(source, Collections.singletonList(child));
Expand All @@ -39,6 +41,16 @@ public List<Attribute> output() {
return child.output();
}

@Override
public AttributeSet outputSet() {
if (lazyOutputSet == null) {
List<Attribute> output = output();
lazyOutputSet = (output == child.output() ? child.outputSet() : new AttributeSet(output));
return lazyOutputSet;
}
return lazyOutputSet;
}

@Override
public int hashCode() {
return Objects.hashCode(child());
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