morrySnow commented on code in PR #50256:
URL: https://github.com/apache/doris/pull/50256#discussion_r2059481915
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fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/ScalarSubquery.java:
##########
@@ -42,25 +42,33 @@ public class ScalarSubquery extends SubqueryExpr {
private final boolean hasTopLevelScalarAgg;
+ private final boolean limitOneIsEliminated;
Review Comment:
add some comment to explain these flags
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/SubqueryToApply.java:
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@@ -406,7 +407,7 @@ private Pair<LogicalPlan, Optional<Expression>>
addApply(SubqueryExpr subquery,
Optional<MarkJoinSlotReference> markJoinSlot =
subqueryToMarkJoinSlot.get(subquery);
boolean needAddScalarSubqueryOutputToProjects =
isConjunctContainsScalarSubqueryOutput(
subquery, conjunct, isProject, singleSubquery);
- boolean needRuntimeAssertCount = false;
+ boolean needRuntimeAnyValue = false;
Review Comment:
add comment
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/SubExprAnalyzer.java:
##########
@@ -124,13 +124,15 @@ public Expression visitScalarSubquery(ScalarSubquery
scalar, T context) {
boolean isCorrelated = analyzedResult.isCorrelated();
LogicalPlan analyzedSubqueryPlan = analyzedResult.logicalPlan;
checkOutputColumn(analyzedSubqueryPlan);
+ boolean limitOneIsEliminated = false;
Review Comment:
add comment
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/jobs/executor/Analyzer.java:
##########
@@ -152,8 +151,7 @@ private static List<RewriteJob> buildAnalyzerJobs() {
),
topDown(new LeadingJoin()),
bottomUp(new NormalizeGenerate()),
- bottomUp(new SubqueryToApply()),
- topDown(new MergeProjects())
+ bottomUp(new SubqueryToApply())
Review Comment:
add a NOTICE comment, to avoid add a mergeprojects affter subqueryToApply
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