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https://issues.apache.org/jira/browse/HIVE-18618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16352856#comment-16352856
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Sergey Shelukhin commented on HIVE-18618:
-----------------------------------------
There's a fix in HIVE-18571
> Table stats on Micro-managed table becomes incorrect after INSERT OVERWRITE
> ---------------------------------------------------------------------------
>
> Key: HIVE-18618
> URL: https://issues.apache.org/jira/browse/HIVE-18618
> Project: Hive
> Issue Type: Bug
> Components: Transactions
> Affects Versions: 3.0.0
> Reporter: Steve Yeom
> Assignee: Steve Yeom
> Priority: Major
>
> Micromanage table INSERT OVERWRITE now does not clean existing delta
> directories
> during the operation. Instead compaction cleaner deletes obsolete directories.
> The current system does not compute correctly when it calculates table
> statistics
> since it does not ignore obsolete delta directories.
> A fix is already available in the patch of HIVE-18052. It would be valuable
> to separate
> the code changes into this jira ticket.
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