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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/05/09 18:56:44 UTC

[GitHub] [arrow-datafusion] houqp commented on pull request #280: Improve column naming by aliasing with expression name

houqp commented on pull request #280:
URL: https://github.com/apache/arrow-datafusion/pull/280#issuecomment-835863662


   > I think we should make sure unnamed expressions can only be referenced by index, or with * and not by a generated name.
   
   +1, I did [some research](https://docs.google.com/document/d/1uviWavwEGD3qxwMk2AGkOgp6ENrvKGiMWQhHNbqPwhg/edit#heading=h.f80y77vmglud) on this as well, postgresql even name most of the unnamed expression `?column?` in their output. Users should either use index or manually create aliases.


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