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Posted to issues@hive.apache.org by "Rajesh Balamohan (JIRA)" <ji...@apache.org> on 2016/06/02 04:36:59 UTC

[jira] [Updated] (HIVE-13922) Optimize the code path that analyzes/updates col stats

     [ https://issues.apache.org/jira/browse/HIVE-13922?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rajesh Balamohan updated HIVE-13922:
------------------------------------
    Attachment: HIVE-13922.1.patch

> Optimize the code path that analyzes/updates col stats
> ------------------------------------------------------
>
>                 Key: HIVE-13922
>                 URL: https://issues.apache.org/jira/browse/HIVE-13922
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>            Reporter: Rajesh Balamohan
>            Priority: Minor
>         Attachments: HIVE-13922.1.patch
>
>
> 1. Depending on the number of partitions, HiveMetastore::update_partition_column_statistics::getPartValsFromName obtains the same table several times.
> 2. In ObjectStore, number of get calls to obtain the column stats can be considerably reduced when writing table/partition stats. 



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