[GitHub] [spark] mcdull-zhang commented on pull request #36483: [SPARK-39126][SQL] After eliminating join to one side, that side should take advantage of LocalShuffleRead optimization

[GitBox <gi...@apache.org>]

mcdull-zhang commented on PR #36483:
URL: https://github.com/apache/spark/pull/36483#issuecomment-1120704735

   @ulysses-you   thank you for your suggestion.
   
   If you change the SQL to
   ```sql
   SELECT * from testData LEFT JOIN testData2 ON key = a AND a>10 LATERAL VIEW EXPLODE(array(1,2,3)) AS vid
   ```
   Then physical plan after optimized looks like:
   ```tex
   Generate explode
       Project
           AQEShuffleRead
               ...
   ```
   
   In this way, AQEShuffleRead is under Generate and Project.
   
   Or do you mean to find out all AQEShuffleRead located under Project? Then judge and deal with it?


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