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https://issues.apache.org/jira/browse/HIVE-2188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13042532#comment-13042532
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Sohan Jain commented on HIVE-2188:
----------------------------------

RB: https://reviews.apache.org/r/831/

Thanks for looking, Ashutosh.  I'm not sure how to translate the speedup to 
hive queries, but a plausible use case is when you are working with a Hive 
client.  Suppose you have N tables that you know share a set of keys, and you 
need to get the values of those keys for each table somewhat quickly to 
populate a UI.  Previously, you would have to call get_table on each table, 
which requires N trips to the metastore, but now you can retrieve all tables 
with just one trip to the metastore, saving time on the overhead of going to 
the metastore.

> Add multi_get_table function in Hive Metastore
> ----------------------------------------------
>
>                 Key: HIVE-2188
>                 URL: https://issues.apache.org/jira/browse/HIVE-2188
>             Project: Hive
>          Issue Type: New Feature
>          Components: Metastore
>            Reporter: Sohan Jain
>            Assignee: Sohan Jain
>            Priority: Minor
>         Attachments: HIVE-2188.1.patch
>
>
> This function would get multiple tables from the hive metastore as opposed to 
> just one at a time, saving round trip time to the metastore.

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