AngersZhuuuu commented on issue #26406: [WIP][SPARK-29145][SQL][FOLLOW-UP] Port 
in-subquery-on-join-condition.sql
URL: https://github.com/apache/spark/pull/26406#issuecomment-550183982
 
 
   > sorry, but I miss your point. You meant that this test could run correctly 
on `SubquerySuite.scala` but it couldn't run on `SQLQueryTestSuite`? I think 
its ok just to move the tests you added in the previous PR into 
`SQLQueryTestSuite`.
   
   No, current catalyst can't support  well for `EXISTS` when use this as 
join's `on ` condition and join type is `LeftOuter/FullOuter` like I have show 
in https://github.com/apache/spark/pull/26406#issuecomment-550159730
   
   In the end of above comment, you can see that some part of Physical Plan is 
not a Physical Plan , There is a `LocalRelation`, we can't doCodeGen for the 
whole physical plan.

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