[GitHub] [arrow-datafusion] realno opened a new issue #1529: Add Decimal support for statistical functions `var` and `stddev`

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

realno opened a new issue #1529:
URL: https://github.com/apache/arrow-datafusion/issues/1529


   **Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
   
   A PR is open for adding variance and standard deviation functions to DataFusion (https://github.com/apache/arrow-datafusion/pull/1525). Decimal type is not supported as Postgres spec (https://www.postgresql.org/docs/9.1/functions-aggregate.html). This issue is to capture the work.
   
   **Describe the solution you'd like**
   `var`, `var_samp`, `var_pop`, `stddev`, `stddev_samp`, `stddev_pop` should support decimal type.
   
   **Describe alternatives you've considered**
   A clear and concise description of any alternative solutions or features you've considered.
   
   **Additional context**
   The work can be added to (#122) or create a new PR once it's merged.


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