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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/08/20 20:21:42 UTC

[GitHub] [arrow-datafusion] houqp commented on pull request #792: Implement basic common subexpression eliminate optimization

houqp commented on pull request #792:
URL: https://github.com/apache/arrow-datafusion/pull/792#issuecomment-902936271


   I will take a closer look at it this weekend, my hunch on this is we only want to strip qualifier to direct column projections, i.e. `SELECT test.c1`. For compound projections like `test.c1 PLUS test.c2`, it might be preferable to include qualifiers in the name for better readability.


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