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From "Sergey Shelukhin (JIRA)" <>
Subject [jira] [Commented] (HIVE-4914) filtering via partition name should be done inside metastore server (implementation)
Date Tue, 03 Sep 2013 17:41:53 GMT


Sergey Shelukhin commented on HIVE-4914:

somehow phabricator created the new review... not sure why
> filtering via partition name should be done inside metastore server (implementation)
> ------------------------------------------------------------------------------------
>                 Key: HIVE-4914
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>         Attachments: HIVE-4914.01.patch, HIVE-4914.02.patch, HIVE-4914.D12561.1.patch,
HIVE-4914.D12645.1.patch, HIVE-4914-only-no-gen.patch, HIVE-4914-only.patch, HIVE-4914.patch,
HIVE-4914.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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