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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/03/19 20:44:58 UTC

[GitHub] [arrow-datafusion] WinkerDu edited a comment on issue #2027: beautify default column names

WinkerDu edited a comment on issue #2027:
URL: https://github.com/apache/arrow-datafusion/issues/2027#issuecomment-1073078064


   > Please also consider the Apache Hive auto alias as a reference.
   > 
   > TBH, I'm conservative on the need to provide a default name. If something goes wrong, it's acceptable to fail the query, requiring the user to alias explicitly.
   
   @xudong963 After checking #1818 , like @alamb and @yjshen says, realigning anonymous columns for all `Expr` seems a bit much.
   To solve #1818 , I prefer what @alamb put that adding a `LogicalPlan::Projection` to `Union`. 
   BTW, I'd like to solve that `Union` corner bug as appropriate, what do you think @xudong963. :D


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