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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/03/30 20:43:34 UTC

[GitHub] [arrow-datafusion] mateuszkj commented on pull request #2128: MINOR: fix concat_ws corner bug

mateuszkj commented on pull request #2128:
URL: https://github.com/apache/arrow-datafusion/pull/2128#issuecomment-1083606926


   Now it's failing with two NULLs at last arguments.
   
   To Reproduce
   ```sql
   SELECT concat_ws('|','a',NULL, NULL);
   -- Result: a|
   ```
   Expected behavior
   ```sql
   SELECT concat_ws('|','a',NULL, NULL);
   -- Result: a
   ```


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