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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-28236) Fix PullOutNondeterministic Analyzer rule to enforce idempotence
Date Tue, 02 Jul 2019 21:10:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-28236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Apache Spark reassigned SPARK-28236:
------------------------------------

    Assignee:     (was: Apache Spark)

> 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
>            Priority: Major
>
> 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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