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https://issues.apache.org/jira/browse/HIVE-4914?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13734137#comment-13734137
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Sergey Shelukhin commented on HIVE-4914:
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There are few minor bugs, I will update later today. There's also some code in 
JDO filter pushdown that never worked in the first place, but client didn't let 
it execute due to more restrictive pushdown checks. I will fix/remove it.
                
> filtering via partition name should be done inside metastore server 
> (implementation)
> ------------------------------------------------------------------------------------
>
>                 Key: HIVE-4914
>                 URL: https://issues.apache.org/jira/browse/HIVE-4914
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>         Attachments: HIVE-4914-only-no-gen.patch, HIVE-4914-only.patch, 
> HIVE-4914.patch
>
>
> Currently, if the filter pushdown is impossible (which is most cases), the 
> client gets all partition names from metastore, filters them, and asks for 
> partitions by names for the filtered set.
> Metastore server code should do that instead; it should check if pushdown is 
> possible and do it if so; otherwise it should do name-based filtering.
> Saves the roundtrip with all partition names from the server to client, and 
> also removes the need to have pushdown viability checking on both sides.

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