[GitHub] [arrow-datafusion] viirya opened a new issue, #6243: Aggregation with group by cannot work for Dictionary array

["viirya (via GitHub)" <gi...@apache.org>]

viirya opened a new issue, #6243:
URL: https://github.com/apache/arrow-datafusion/issues/6243

   ### Describe the bug
   
   We fixed some Dictionary input issue for aggregate functions like `sum` and `avg` in #6197. But we also found another issue of Dictionary input. Aggregation with group by cannot work for Dictionary array.
   
   ### To Reproduce
   
   I've added test cases in `datafusion/core/tests/sqllogictests/test_files/aggregate.slt`.
   
   ```
   DataFusion error: External error: Arrow error: Invalid argument error: RowConverter column schema mismatch, expected Int64 got Dictionary\(Int64, Int64\)
   select sum(x_dict) from value_dict group by x_dict % 2;
   ```
   
   ### Expected behavior
   
   Aggregation with group by should work with Dictionary array.
   
   ### Additional context
   
   _No response_


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[GitHub] [arrow-datafusion] viirya closed issue #6243: Aggregation with group by cannot work for Dictionary array

["viirya (via GitHub)" <gi...@apache.org>]

viirya closed issue #6243: Aggregation with group by cannot work for Dictionary array
URL: https://github.com/apache/arrow-datafusion/issues/6243


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