[
https://issues.apache.org/jira/browse/PIG-4377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14561346#comment-14561346
]
Daniel Dai edited comment on PIG-4377 at 5/27/15 5:40 PM:
----------------------------------------------------------
Actually PIG-4377-3.patch is needed, since IsFirstReduceOfKey of the join
vertex need sample input. Attach PIG-4377-4.patch to bring it back, add
comments and fix TestTezCompiler failures.
was (Author: daijy):
Actually PIG-4377-3.patch is needed, since the join vertex. Attach
PIG-4377-4.patch to bring it back, add comments and fix TestTezCompiler
failures.
> 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, PIG-4377-3.patch,
> PIG-4377-4.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).
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
