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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/11/17 03:53:29 UTC

[GitHub] [arrow-datafusion] xudong963 opened a new issue #1320: Optimizing queries with multiple aggregations where one Is aggregating on DISTINCT

xudong963 opened a new issue #1320:
URL: https://github.com/apache/arrow-datafusion/issues/1320


   **Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
   Inspired by #1315, I think we can also do the optimization.
   
   **Describe the solution you'd like**
   Ref: https://www.qubole.com/blog/presto-optimizes-aggregations-over-distinct-values/
   
   **Describe alternatives you've considered**
   No
   
   **Additional context**
   Related PR: #1315 
   


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