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https://issues.apache.org/jira/browse/SPARK-20986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16037079#comment-16037079
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Apache Spark commented on SPARK-20986:
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User 'lianhuiwang' has created a pull request for this issue:
https://github.com/apache/spark/pull/18205
> Reset table's statistics after PruneFileSourcePartitions rule.
> --------------------------------------------------------------
>
> Key: SPARK-20986
> URL: https://issues.apache.org/jira/browse/SPARK-20986
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.1.0
> Reporter: Lianhui Wang
>
> After PruneFileSourcePartitions rule, It needs reset table's statistics
> because PruneFileSourcePartitions can filter some unnecessary partitions. So
> the statistics need to be changed.
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