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https://issues.apache.org/jira/browse/HIVE-20617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16649765#comment-16649765
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Zoltan Haindrich commented on HIVE-20617:
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opened rb; patch#1 on reviewboard is #7 here
https://reviews.apache.org/r/69019/
> Fix type of constants in IN expressions to have correct type
> ------------------------------------------------------------
>
> Key: HIVE-20617
> URL: https://issues.apache.org/jira/browse/HIVE-20617
> Project: Hive
> Issue Type: Bug
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
> Attachments: HIVE-20617.01.patch, HIVE-20617.02.patch,
> HIVE-20617.03.patch, HIVE-20617.05.patch, HIVE-20617.06.patch,
> HIVE-20617.07.patch
>
>
> In statements like {{struct(a,b) IN (const struct('x','y'), ... )}} the
> comparision in UDFIn may fail because if a or b is of char/varchar type the
> constants will retain string type - especially after PointlookupOptimizer
> compaction.
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