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Posted to commits@calcite.apache.org by GitBox <gi...@apache.org> on 2020/08/26 14:10:26 UTC

[GitHub] [calcite] rubenada opened a new pull request #2122: [CALCITE-4195] Cast from character to character with a different collator must be evaluated as not monotonic

rubenada opened a new pull request #2122:
URL: https://github.com/apache/calcite/pull/2122


   Problem related to the feature CALCITE-3951.
   A cast operation from a character type to another character type that has a different collator must be evaluated as not monotonic. Currently this is not the case.
   This has an impact e.g. in SortProjectTransposeRule, since we can incorrectly transpose a sort after a projection than contains such a cast, and we end up with a plan that will return a different result than the original one.
   


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[GitHub] [calcite] rubenada commented on pull request #2122: [CALCITE-4195] Cast between types with different collators must be evaluated as not monotonic

Posted by GitBox <gi...@apache.org>.
rubenada commented on pull request #2122:
URL: https://github.com/apache/calcite/pull/2122#issuecomment-682370289


   Thanks for your review @chunweilei !


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[GitHub] [calcite] rubenada merged pull request #2122: [CALCITE-4195] Cast between types with different collators must be evaluated as not monotonic

Posted by GitBox <gi...@apache.org>.
rubenada merged pull request #2122:
URL: https://github.com/apache/calcite/pull/2122


   


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