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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/05/26 10:11:13 UTC

[GitHub] [arrow-datafusion] alamb commented on issue #1192: `-` (negation) with NULL literals does not work: can't be evaluated because the expression's type is Utf8, not signed

alamb commented on issue #1192:
URL: https://github.com/apache/arrow-datafusion/issues/1192#issuecomment-1138374980

   🤔  I just tried the query again, and it now gives a different error:
   
   ```sql
   ❯ select -null;
   Internal("(- 'Literal { value: NULL }') can't be evaluated because the expression's type is Null, not signed numeric")
   ```
   
   I think we are getting closer...


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