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Hadoop QA commented on PIG-927: ------------------------------- +1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12422271/PIG-927-2.patch against trunk revision 825712. +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 passed core unit tests. +1 contrib tests. The patch passed contrib unit tests. Test results: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/87/testReport/ Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/87/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Console output: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/87/console This message is automatically generated. > null should be handled consistently in Join > ------------------------------------------- > > Key: PIG-927 > URL: https://issues.apache.org/jira/browse/PIG-927 > Project: Pig > Issue Type: Bug > Affects Versions: 0.4.0 > Reporter: Pradeep Kamath > Assignee: Daniel Dai > Fix For: 0.6.0 > > Attachments: PIG-927-1.patch, PIG-927-2.patch > > > Currenlty Pig mostly follows SQL semantics for handling null. However there > are certain cases where pig may need to handle nulls correctly. One example > is the join - joins on single keys results in null keys not matching to > produce an output. However if the join is on >1 keys, in the key tuple, if > one of the values is null, it still matches with another key tuple which has > a null for that value. We need to decide the right semantics here. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.