You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "Zhenhua Wang (JIRA)" <ji...@apache.org> on 2017/06/14 18:45:01 UTC
[jira] [Closed] (SPARK-16669) Partition pruning for metastore
relation size estimates for better join selection.
[ https://issues.apache.org/jira/browse/SPARK-16669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zhenhua Wang closed SPARK-16669.
--------------------------------
Resolution: Duplicate
> Partition pruning for metastore relation size estimates for better join selection.
> ----------------------------------------------------------------------------------
>
> Key: SPARK-16669
> URL: https://issues.apache.org/jira/browse/SPARK-16669
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Parth Brahmbhatt
>
> Currently the metastore statistics returns the size of entire table which results in Join selection strategy to not use broadcast joins even when only a single partition from a large table is selected. We should optimize the statistic calculation at table level to apply partition pruning and only get the size of Partition that are valid for the query.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org