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https://issues.apache.org/jira/browse/HIVE-2101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13422468#comment-13422468
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Edward Capriolo commented on HIVE-2101:
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Which is pretty major because hive now auto-map joins most queries.
> mapjoin sometimes gives wrong results if there is a filter in the on condition
> ------------------------------------------------------------------------------
>
> Key: HIVE-2101
> URL: https://issues.apache.org/jira/browse/HIVE-2101
> Project: Hive
> Issue Type: Bug
> Reporter: He Yongqiang
>
> "SELECT / * + mapjoin(src1, src2) * / * FROM src src1 RIGHT OUTER JOIN src
> src2 ON (src1.key = src2.key AND src1.key < 10 AND src2.key > 10) JOIN src
> src3 ON (src2.key = src3.key AND src3.key < 10) SORT BY src1.key, src1.value,
> src2.key, src2.value, src3.key, src3.value;" will give wrong results in
> today's hive
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