You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@pig.apache.org by "Olga Natkovich (JIRA)" <ji...@apache.org> on 2008/02/25 21:50:51 UTC
[jira] Updated: (PIG-7) Optimize execution of algebraic functions
[ https://issues.apache.org/jira/browse/PIG-7?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Olga Natkovich updated PIG-7:
-----------------------------
Patch Info: (was: [Patch Available])
cleared patch available flag since all patches have been committed
> Optimize execution of algebraic functions
> -----------------------------------------
>
> Key: PIG-7
> URL: https://issues.apache.org/jira/browse/PIG-7
> Project: Pig
> Issue Type: Improvement
> Components: impl
> Reporter: Olga Natkovich
> Assignee: Alan Gates
> Attachments: combiner.patch, combiner2.patch, combiner3.patch, pig7.patch
>
>
> Algebraic are functions that can be computed incrementally like count(X), SUM(X), etc. They can be computed effciently by doing the first level computation using hadoop combiner. This can give a significant (2-3x) speedup for many aggregation queries.
> Several users asked us for this feature so it is pretty high priority.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.