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Posted to dev@pig.apache.org by "Daniel Dai (JIRA)" <ji...@apache.org> on 2015/05/11 22:38:00 UTC
[jira] [Updated] (PIG-4377) Skewed outer join produce wrong result
if a key is oversampled
[ https://issues.apache.org/jira/browse/PIG-4377?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Dai updated PIG-4377:
----------------------------
Summary: Skewed outer join produce wrong result if a key is oversampled (was: Skewed outer join produce wrong result in some cases)
> Skewed outer join produce wrong result if a key is oversampled
> --------------------------------------------------------------
>
> Key: PIG-4377
> URL: https://issues.apache.org/jira/browse/PIG-4377
> Project: Pig
> Issue Type: Bug
> Components: impl
> Reporter: Daniel Dai
> Assignee: Daniel Dai
> Fix For: 0.15.0
>
> Attachments: PIG-4377-1.patch, PIG-4377-2.patch, reproduce.patch
>
>
> Skewed outer join produce more than expected rows under certain condition. The extra rows contain null left relation. Can be reproduced reliably with reproduce.patch (run SkewedJoin_11).
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