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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/10/18 15:17:51 UTC

[GitHub] [arrow-datafusion] andygrove opened a new issue, #3881: Multiple projections added with multiple optimizer passes

andygrove opened a new issue, #3881:
URL: https://github.com/apache/arrow-datafusion/issues/3881

   **Describe the bug**
   
   Running the optimizer multiple times inserts redundant projections
   
   ```
   Projection: SUM(lineitem.l_extendedprice * lineitem.l_discount) AS revenue
     Aggregate: groupBy=[[]], aggr=[[SUM(lineitem.l_extendedprice * lineitem.l_discount)]]
       Projection: lineitem.l_extendedprice, lineitem.l_discount
         Projection: lineitem.l_extendedprice, lineitem.l_discount
           Projection: lineitem.l_extendedprice, lineitem.l_discount
             Projection: lineitem.l_extendedprice, lineitem.l_discount
               Projection: lineitem.l_extendedprice, lineitem.l_discount
   ```
   
   **To Reproduce**
   Run `cargo test` with https://github.com/apache/arrow-datafusion/pull/3880
   
   **Expected behavior**
   A clear and concise description of what you expected to happen.
   
   **Additional context**
   Add any other context about the problem here.
   


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[GitHub] [arrow-datafusion] andygrove closed issue #3881: `projection_push_down` adds duplicate projections with multiple passes

Posted by GitBox <gi...@apache.org>.
andygrove closed issue #3881: `projection_push_down` adds duplicate projections with multiple passes
URL: https://github.com/apache/arrow-datafusion/issues/3881


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[GitHub] [arrow-datafusion] andygrove commented on issue #3881: `projection_push_down` adds duplicate projections with multiple passes

Posted by GitBox <gi...@apache.org>.
andygrove commented on issue #3881:
URL: https://github.com/apache/arrow-datafusion/issues/3881#issuecomment-1284148655

   Fixed in https://github.com/apache/arrow-datafusion/pull/3880


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