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Posted to commits@calcite.apache.org by GitBox <gi...@apache.org> on 2021/11/05 18:53:33 UTC

[GitHub] [calcite] wnob commented on pull request #2595: [CALCITE-4872] Make new UNKNOWN SqlTypeName, distinct from NULL (Will Noble)

wnob commented on pull request #2595:
URL: https://github.com/apache/calcite/pull/2595#issuecomment-962137173


   Yes, unfortunately Looker makes liberal use of `UNKNOWN`-typed expressions to represent arbitrary user-provided snippets of SQL. With a recent change making use of new rewrite rules, we ran into the issue of `UNKNOWN` types changing to `NULL` types when calling `createWithNullability`, and the rewrite rules failing.


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