vineetgarg02 commented on a change in pull request #1525:
URL: https://github.com/apache/hive/pull/1525#discussion_r500661508
##########
File path:
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HiveSubQueryRemoveRule.java
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@@ -406,6 +409,16 @@ private RexNode rewriteInExists(RexSubQuery e,
Set<CorrelationId> variablesSet,
offset = offset + 1;
builder.push(e.rel);
}
+ } else if (e.getKind() == SqlKind.EXISTS && !variablesSet.isEmpty()) {
+ // Query has 'exists' and correlation:
Review comment:
Can you add a comment to explain/mention why limit is being removed for
correlated EXISTs?
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