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https://issues.apache.org/jira/browse/HIVE-2456?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13108025#comment-13108025
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He Yongqiang commented on HIVE-2456:
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+1, will commit after tests pass
> JDBCStatsAggregator DELETE STATEMENT should escape _ and %
> ----------------------------------------------------------
>
> Key: HIVE-2456
> URL: https://issues.apache.org/jira/browse/HIVE-2456
> Project: Hive
> Issue Type: Improvement
> Reporter: Ning Zhang
> Assignee: Ning Zhang
> Attachments: HIVE-2456.patch
>
>
> JDBCStatsAggregator first aggregates stats from all publishers, and then
> delete these intermediate results. The delete is using LIKE operator, so it
> needs to escape '_' and '%'.
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