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https://issues.apache.org/jira/browse/HIVE-12562?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15036658#comment-15036658
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Sergey Shelukhin commented on HIVE-12562:
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Is there a repro?
> Enabling native fast hash table can cause incorrect results
> -----------------------------------------------------------
>
> Key: HIVE-12562
> URL: https://issues.apache.org/jira/browse/HIVE-12562
> Project: Hive
> Issue Type: Bug
> Reporter: Siddharth Seth
>
> Enabling "hive.vectorized.execution.mapjoin.native.fast.hashtable.enabled"
> causes incorrect results when running with LLAP.
> I believe this does not happen for simple container runs. However, it's
> possible that caching of these tables, or using the same table more than once
> causes issues - which may be seen with container reuse.
> The results vary by a small percentage.
> e.g. 82270, 82267 <- Two results for the same query run back to back.
> cc [~mmccline]
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