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Posted to dev@pig.apache.org by "Cheolsoo Park (JIRA)" <ji...@apache.org> on 2014/01/27 23:59:38 UTC

[jira] [Created] (PIG-3727) Fix split + skewed join

Cheolsoo Park created PIG-3727:
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             Summary: Fix split + skewed join
                 Key: PIG-3727
                 URL: https://issues.apache.org/jira/browse/PIG-3727
             Project: Pig
          Issue Type: Sub-task
          Components: tez
    Affects Versions: tez-branch
            Reporter: Cheolsoo Park
            Assignee: Cheolsoo Park
             Fix For: tez-branch


The e2e SkewedJoin_6 test runs the following query-
{code}
a = load ':INPATH:/singlefile/studenttab10k';
b = filter a by $1 > 25;
c = join a by $0, b by $0 using 'skewed' parallel 7;
store c into ':OUTPATH:';
{code}
Currently, this fails with a compilation error in TezCompiler. Basically, visitSkewedJoin() doesn't handle the POSplit that is inserted between load and join.



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