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Posted to issues@spark.apache.org by "Patrick Wendell (JIRA)" <ji...@apache.org> on 2014/09/16 01:13:49 UTC
[jira] [Updated] (SPARK-1412) Disable partial aggregation
automatically when reduction factor is low
[ https://issues.apache.org/jira/browse/SPARK-1412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Patrick Wendell updated SPARK-1412:
-----------------------------------
Fix Version/s: (was: 1.1.0)
1.2.0
> Disable partial aggregation automatically when reduction factor is low
> ----------------------------------------------------------------------
>
> Key: SPARK-1412
> URL: https://issues.apache.org/jira/browse/SPARK-1412
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.0.0
> Reporter: Reynold Xin
> Assignee: Michael Armbrust
> Priority: Minor
> Fix For: 1.2.0
>
>
> Once we see enough number of rows in partial aggregation and don't observe any reduction, the aggregate operator should just turn off partial aggregation.
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