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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/05/29 10:52:41 UTC

[GitHub] [arrow-datafusion] alamb commented on pull request #436: Remove reundant filters (e.g. c> 5 AND c>5 --> c>5)

alamb commented on pull request #436:
URL: https://github.com/apache/arrow-datafusion/pull/436#issuecomment-850813215


   > (c > 5) OR ((d < 6) AND (c > 5)) should be simplified to (c > 5), isn't it?
   
   Yes you are correct -- I guess I was quickly trying to cook up examples similar to @Dandandan  that showed searching for an arbitrary instance of the same expression (even if it appeared in some nested structure) was going to incorrectly remove the nested instance in some cases
   


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