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From "Daniel Dai (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-1132) Column Pruner issues in dealing with unprunable loader
Date Tue, 08 Dec 2009 23:30:18 GMT

     [ https://issues.apache.org/jira/browse/PIG-1132?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Daniel Dai updated PIG-1132:
----------------------------

      Resolution: Fixed
    Hadoop Flags: [Reviewed]
          Status: Resolved  (was: Patch Available)

Core test failures are due to port conflict. Test manually and it is successful. Patch committed
to both trunk and 0.6 branch. Thanks Alan!

> Column Pruner issues in dealing with unprunable loader
> ------------------------------------------------------
>
>                 Key: PIG-1132
>                 URL: https://issues.apache.org/jira/browse/PIG-1132
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.4.0
>            Reporter: Daniel Dai
>            Assignee: Daniel Dai
>             Fix For: 0.6.0
>
>         Attachments: PIG-1132-1.patch, PIG-1132-2.patch
>
>
> The following script fail:
> {code}
> a = load '1.txt' using BinStorage() as (a0, a1, a2);
> b = foreach a generate a2, a0, a1;
> c = foreach b generate a0, a2;
> explain c;
> {code}
> Error message:
> ERROR 2163: Error during fixing projections. Could not locate replacement column for
column: 1 in the new predecessor        at org.apache.pig.impl.logicalLayer.ProjectFixerUpper.visit(ProjectFixerUpper.java:262)
>         at org.apache.pig.impl.logicalLayer.LOProject.visit(LOProject.java:404)
>         at org.apache.pig.impl.logicalLayer.LOProject.visit(LOProject.java:58)
>         at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67)
>         at org.apache.pig.impl.plan.DepthFirstWalker.walk(DepthFirstWalker.java:50)
>         at org.apache.pig.impl.plan.PlanVisitor.visit(PlanVisitor.java:51)
>         at org.apache.pig.impl.logicalLayer.LOForEach.rewire(LOForEach.java:770)
>         ... 19 more
> Also even we fix the exception, the result is wrong.
> Thanks Thejas for finding a reproducible test case for PigLatin

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