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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2020/03/05 16:24:47 UTC
[GitHub] [spark] viirya commented on issue #27627: [WIP][SPARK-28067][SQL]
Fix incorrect results for decimal aggregate sum by returning null on
decimal overflow
viirya commented on issue #27627: [WIP][SPARK-28067][SQL] Fix incorrect results for decimal aggregate sum by returning null on decimal overflow
URL: https://github.com/apache/spark/pull/27627#issuecomment-595318275
Based on previous explanation, looks like the overflow happens during partial aggregate ( updateExpressions and mergeExpressions)? At final aggregate, is a check for null useful for the reported case here?
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