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https://issues.apache.org/jira/browse/PIG-935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12749227#action_12749227
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Hadoop QA commented on PIG-935:
-------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12418081/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/181/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-minerva.apache.org/181/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Pig-Patch-minerva.apache.org/181/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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