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From "Phabricator (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-5234) partition name filtering uses suboptimal datastructures
Date Fri, 06 Sep 2013 02:28:52 GMT

     [ https://issues.apache.org/jira/browse/HIVE-5234?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Phabricator updated HIVE-5234:
------------------------------

    Attachment: HIVE-5234.D12777.1.patch

sershe requested code review of "HIVE-5234 [jira] partition name filtering uses suboptimal
datastructures".

Reviewers: JIRA

initial commit

TEST PLAN
  EMPTY

REVISION DETAIL
  https://reviews.facebook.net/D12777

AFFECTED FILES
  metastore/src/java/org/apache/hadoop/hive/metastore/Warehouse.java
  ql/src/java/org/apache/hadoop/hive/ql/optimizer/ppr/PartitionPruner.java

MANAGE HERALD RULES
  https://reviews.facebook.net/herald/view/differential/

WHY DID I GET THIS EMAIL?
  https://reviews.facebook.net/herald/transcript/30609/

To: JIRA, sershe

                
> partition name filtering uses suboptimal datastructures
> -------------------------------------------------------
>
>                 Key: HIVE-5234
>                 URL: https://issues.apache.org/jira/browse/HIVE-5234
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>         Attachments: HIVE-5234.D12777.1.patch
>
>
> Some DSes used in name-based partition filtering, as well as related methods, are suboptimal,
which can cost 100-s of ms on large number of partitions. I noticed while perf testing HIVE-4914,
but it can also be applied separately given that the patch over there will take some time
to get in.

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