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Posted to issues@spark.apache.org by "Yesheng Ma (JIRA)" <ji...@apache.org> on 2019/07/02 19:45:00 UTC

[jira] [Created] (SPARK-28236) Fix PullOutNondeterministic Analyzer rule to enforce idempotence

Yesheng Ma created SPARK-28236:
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             Summary: Fix PullOutNondeterministic Analyzer rule to enforce idempotence
                 Key: SPARK-28236
                 URL: https://issues.apache.org/jira/browse/SPARK-28236
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: Yesheng Ma


Previous {{PullOutNonDeterministic}} rule transforms aggregates when the aggregating expression has sub-expressions whose {{deterministic}} field is set to false. However, this might break {{PullOutNonDeterministic's}} idempotence property since the actually aggregation rewriting will only transform those with {{NonDeterministic}} trait.



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