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https://issues.apache.org/jira/browse/HIVE-21923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16872389#comment-16872389
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Zoltan Haindrich commented on HIVE-21923:
-----------------------------------------
disabling auto.convert.join changes the resultset from 0 to 5680 ; for the
query:
{code}
SELECT COUNT(*)
FROM src1 x JOIN srcpart z ON (x.key = z.key)
JOIN srcpart w ON (x.key = w.key)
JOIN src y ON (y.key = x.key)
{code}
because there is no limit or similar in the above query - I think this means
that there is bug somewhere...
> Disabling n-way joins caused some resultset changes
> ---------------------------------------------------
>
> Key: HIVE-21923
> URL: https://issues.apache.org/jira/browse/HIVE-21923
> Project: Hive
> Issue Type: Bug
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
>
> HIVE-21189 have introduced some resultset changes
> in ql/src/test/results/clientpositive/llap/hybridgrace_hashjoin_2.q.out
> https://github.com/apache/hive/commit/5799398450c17d06e8ef144ce835a8524f5abec9#diff-56b3ab96b6c90fdbebe2c4f84e8595afL500
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