[jira] [Created] (PIG-3641) Split "otherwise" producing incorrect output when combined with ColumnPruning

["Koji Noguchi (JIRA)" <ji...@apache.org>]

Koji Noguchi created PIG-3641:
---------------------------------

             Summary: Split "otherwise" producing incorrect output when combined with ColumnPruning
                 Key: PIG-3641
                 URL: https://issues.apache.org/jira/browse/PIG-3641
             Project: Pig
          Issue Type: Bug
    Affects Versions: 0.11.1, 0.12.0, 0.10.0, 0.13.0
            Reporter: Koji Noguchi
            Assignee: Koji Noguchi


Our user was observing incorrect outputs depending on if the query had intermediate output or not.  Below is a simplified testcase I came up with.

{noformat}
knoguchi pig> cat test.txt
9,1,ignored
9,1,ignored
9,1,ignored
knoguchi pig> cat bz-6590644/test.pig
A = load 'test.txt' using PigStorage(',') as (a1:int, a2:int, a3:chararray);
B = foreach A generate a1,a2;
SPLIT B into C1 if a2 == 1, D1 otherwise;
C2 = foreach C1 generate a2;
store C2 into '/tmp/testC';
store D1 into '/tmp/testD';
knoguchi@nameother-lm pig>
{noformat}

Incorrect output shown below.  /tmp/testD should be empty but somehow has data in it.

{noformat}
knoguchi@nameother-lm pig> cat /tmp/testC/part-m-00000
1
1
1
knoguchi pig> cat /tmp/testD/part-m-00000
9       1
9       1
9       1
knoguchi pig>
{noformat}





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