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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2020/10/09 10:24:29 UTC

[GitHub] [spark] dongjoon-hyun commented on pull request #29983: [SPARK-13860][SQL] change stddev_samp and var_samp to return 0.0 instead of Double.NaN to align with TPCDS standard.

dongjoon-hyun commented on pull request #29983:
URL: https://github.com/apache/spark/pull/29983#issuecomment-706100847


   Thank you for your contribution, @leanken .
   BTW, could you check the UT failure? It looks like relevant.
   ```
   org.apache.spark.sql.hive.execution.WindowQuerySuite.windowing.q -- 15. testExpressions
   ```


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