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https://issues.apache.org/jira/browse/HIVE-19727?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16496694#comment-16496694
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Ashutosh Chauhan commented on HIVE-19727:
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>From patch and test runs I only see spark q.out file changes. But Sharedwork
>optimizer currently doesn't apply on spark. Which test cases you are referring
>to?
> Fix Signature matching of table aliases
> ---------------------------------------
>
> Key: HIVE-19727
> URL: https://issues.apache.org/jira/browse/HIVE-19727
> Project: Hive
> Issue Type: Sub-task
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
> Attachments: HIVE-19727.01.patch, HIVE-19727.02.patch,
> HIVE-19727.03.patch
>
>
> there is a probable problem with alias matching: "t1 as a" is matched to "t2
> as a"
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