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https://issues.apache.org/jira/browse/HIVE-9358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14311803#comment-14311803
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Alexander Pivovarov commented on HIVE-9358:
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Added the function description to the wiki.
> Create LAST_DAY UDF
> -------------------
>
> Key: HIVE-9358
> URL: https://issues.apache.org/jira/browse/HIVE-9358
> Project: Hive
> Issue Type: Improvement
> Components: UDF
> Reporter: Alexander Pivovarov
> Assignee: Alexander Pivovarov
> Fix For: 0.15.0
>
> Attachments: HIVE-9358.1.patch, HIVE-9358.2.patch
>
>
> LAST_DAY returns the date of the last day of the month that contains date:
> last_day('2015-01-14') = '2015-01-31'
> last_day('2016-02-01') = '2016-02-29'
> last_day function went from oracle
> http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions072.htm
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