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Posted to dev@pig.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2009/08/27 01:20:59 UTC
[jira] Commented: (PIG-935) Skewed join throws an exception when
used with map keys
[ https://issues.apache.org/jira/browse/PIG-935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12748201#action_12748201 ]
Hadoop QA commented on PIG-935:
-------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12417766/skjoinmapbug.patch
against trunk revision 806668.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of release audit warnings.
-1 core tests. The patch failed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results: http://hudson.zones.apache.org/hudson/job/Pig-Patch-minerva.apache.org/179/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Pig-Patch-minerva.apache.org/179/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: http://hudson.zones.apache.org/hudson/job/Pig-Patch-minerva.apache.org/179/console
This message is automatically generated.
> Skewed join throws an exception when used with map keys
> -------------------------------------------------------
>
> Key: PIG-935
> URL: https://issues.apache.org/jira/browse/PIG-935
> Project: Pig
> Issue Type: Bug
> Reporter: Sriranjan Manjunath
> Attachments: skjoinmapbug.patch
>
>
> Skewed join throws a runtime exception for the following query:
> A = load 'map.txt' as (e);
> B = load 'map.txt' as (f);
> C = join A by (chararray)e#'a', B by (chararray)f#'a' using "skewed";
> explain C;
> Exception:
> Caused by: java.lang.ClassCastException: org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POCast cannot be cast to org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.PO
> Project
> at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MRCompiler.getSortCols(MRCompiler.java:1492)
> at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MRCompiler.getSamplingJob(MRCompiler.java:1894)
> ... 27 more
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