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https://issues.apache.org/jira/browse/HIVE-15939?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16246182#comment-16246182
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Zoltan Haindrich commented on HIVE-15939:
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now that HIVE-6590 is in; this could go in as well - IIRC the patch is already
good
+1 pending tests
> Make cast expressions comply more to sql2011
> --------------------------------------------
>
> Key: HIVE-15939
> URL: https://issues.apache.org/jira/browse/HIVE-15939
> Project: Hive
> Issue Type: Sub-task
> Components: SQL
> Reporter: Zoltan Haindrich
> Assignee: Teddy Choi
> Attachments: HIVE-15939.1.patch, HIVE-15939.2.patch,
> HIVE-15939.3.patch, HIVE-15939.4.patch, HIVE-15939.5.patch
>
>
> in HIVE-6590 Jason have uncovered the fact that UDFToBoolean treats all
> non-empty strings as true.
> It would be great to have the cast expressions closer to the standard...at
> least when there is an expected behaviour from the user;
> like {{cast('false' as boolean)}} should be true.
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