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Posted to dev@pig.apache.org by "Daniel Dai (JIRA)" <ji...@apache.org> on 2015/04/29 01:02:07 UTC
[jira] [Updated] (PIG-4049) Improve performance of Limit following
an Orderby on Tez
[ https://issues.apache.org/jira/browse/PIG-4049?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Dai updated PIG-4049:
----------------------------
Fix Version/s: (was: 0.15.0)
0.16.0
> Improve performance of Limit following an Orderby on Tez
> --------------------------------------------------------
>
> Key: PIG-4049
> URL: https://issues.apache.org/jira/browse/PIG-4049
> Project: Pig
> Issue Type: Sub-task
> Components: tez
> Reporter: Rohini Palaniswamy
> Fix For: 0.16.0
>
>
> Better algorithms can be applied to improve performance for limit following an order by.
> For eg:
> {code}
> A = LOAD '/tmp/data' ...;
> B = ORDER A by $0 parallel 100;
> C = LIMIT B 100;
> {code}
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