[GitHub] [spark] kmozaid commented on pull request #31573: [SPARK-34444][SQL] Pushdown scalar-subquery filter to FileSourceScan

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kmozaid commented on PR #31573:
URL: https://github.com/apache/spark/pull/31573#issuecomment-1332320279

   @SaurabhChawla100 Hi Saurabh, I didn't get your statement `If Scalar Subquery completes first, than only scan of t1 starts before this change and after this PR also , Than push down of scalar subquery will always be faster`
   
   The query `SELECT * FROM t1 WHERE b = (select max(d) from t2);` given in this example completes very fast and still it is not being pushed down. 
   
   Suggestion - Can we provide hint to planner to execute subquery first and push down subquery filter?
   
   cc @wangyum Could you please reopen this PR?
   


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