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https://issues.apache.org/jira/browse/HIVE-1858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12975308#action_12975308
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John Sichi commented on HIVE-1858:
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+1. Will commit if tests pass.
The wiki is going to need to be updated for this plus HIVE-1856. Be sure to
include a note that the new syntax + conf is only available starting from Hive
0.7.
> Implement DROP {PARTITION, INDEX, TEMPORARY FUNCTION} IF EXISTS
> ---------------------------------------------------------------
>
> Key: HIVE-1858
> URL: https://issues.apache.org/jira/browse/HIVE-1858
> Project: Hive
> Issue Type: New Feature
> Affects Versions: 0.7.0
> Reporter: Marcel Kornacker
> Assignee: Marcel Kornacker
> Attachments: hive-1858.1.patch
>
>
> Extend HIVE-1856 to support IF EXISTS for {DROP TABLE, VIEW} and ALTER TABLE
> DROP PARTITION
> - signal an error if the to-be-dropped entity doesn't exist and IF EXISTS
> isn't specified
> - this behavior can be disabled by setting hive.exec.drop.ignorenonexistent
> to true
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