Github user dilipbiswal commented on a diff in the pull request:
https://github.com/apache/spark/pull/22141#discussion_r211971929
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/subquery.scala
---
@@ -137,13 +137,21 @@ object RewritePredicateSubquery extends
Rule[LogicalPlan] with PredicateHelper {
plan: LogicalPlan): (Option[Expression], LogicalPlan) = {
var newPlan = plan
val newExprs = exprs.map { e =>
- e transformUp {
+ e transformDown {
--- End diff --
@mgaido91
>> I don't see any test (please correct me if I am wrong) where multiple
attributes are used as output of the subquery. Can we add and compare with
other RDBMS? Thanks.
In
[here](https://github.com/apache/spark/blob/844a3ff82a688e7398bb130a44750aec78420698/sql/core/src/test/resources/sql-tests/inputs/subquery/in-subquery/nested-not-in.sql#L113-L134)
? Is this what you meant ?
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