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https://issues.apache.org/jira/browse/HIVE-7242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14043185#comment-14043185
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Lefty Leverenz commented on HIVE-7242:
--------------------------------------

The wiki already documents the correct behavior:

{quote}
*Hive Command* alter table T1 drop partition P1
*Locks Acquired* S on T1, X on T1.P1
{quote}

Should this bug fix & version be noted in the wiki?

* [Hive Concurrency Model -- Use Cases (see table) | 
https://cwiki.apache.org/confluence/display/Hive/Locking?from=_YKhAQ#Locking-UseCases]

> alter table drop partition is acquiring the wrong type of lock
> --------------------------------------------------------------
>
>                 Key: HIVE-7242
>                 URL: https://issues.apache.org/jira/browse/HIVE-7242
>             Project: Hive
>          Issue Type: Bug
>          Components: Locking
>    Affects Versions: 0.13.0
>            Reporter: Alan Gates
>            Assignee: Alan Gates
>             Fix For: 0.14.0
>
>         Attachments: HIVE-7242.patch
>
>
> Doing an "alter table foo drop partition ('bar=x')" acquired a shared-write 
> lock on partition bar=x.  It should be acquiring an exclusive lock in that 
> case.



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