[GitHub] [arrow-datafusion] WinkerDu opened a new issue #2141: Add 'StringConcat' operator to df

[GitBox <gi...@apache.org>]

WinkerDu opened a new issue #2141:
URL: https://github.com/apache/arrow-datafusion/issues/2141


   **Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
   df now has not implemented `StringConcat` operator, like
   ```
   ❯ select 'aa' || 'b';
   NotImplemented("Unsupported SQL binary operator StringConcat")
   ```
   But Postgres SQL will come out results lile
   ```
   select 'aa' || 'b';
    ?column? 
   ----------
    aab
   (1 row)
   ```
   
   **Describe the solution you'd like**
   Reuse df build-in `concat` string expression to do it.
   
   **Describe alternatives you've considered**
   No.
   
   **Additional context**
   No.
   


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[GitHub] [arrow-datafusion] WinkerDu commented on issue #2141: Add 'StringConcat' operator to df

[GitBox <gi...@apache.org>]

WinkerDu commented on issue #2141:
URL: https://github.com/apache/arrow-datafusion/issues/2141#issuecomment-1086862259


   A raw implementation here: #2142 


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