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From "Dmitriy V. Ryaboy (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PIG-2769) a simple logic causes very long compiling time on pig 0.10.0
Date Thu, 04 Apr 2013 07:39:21 GMT

    [ https://issues.apache.org/jira/browse/PIG-2769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13621897#comment-13621897
] 

Dmitriy V. Ryaboy commented on PIG-2769:
----------------------------------------

Didn't see earlier that this only went into trunk (thanks [~knoguchi] for pointing this out!).
We should put this into 0.11 branch, maybe there will be an 0.11.2 before 12 comes out.
                
> a simple logic causes very long compiling time on pig 0.10.0
> ------------------------------------------------------------
>
>                 Key: PIG-2769
>                 URL: https://issues.apache.org/jira/browse/PIG-2769
>             Project: Pig
>          Issue Type: Bug
>          Components: build
>    Affects Versions: 0.10.0
>         Environment: Apache Pig version 0.10.0-SNAPSHOT (rexported)
>            Reporter: Dan Li
>            Assignee: Nick White
>             Fix For: 0.12
>
>         Attachments: case1.tar, PIG-2769.0.patch, PIG-2769.1.patch, PIG-2769.2.patch,
TEST-org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.TestInputSizeReducerEstimator.txt
>
>
> We found the following simple logic will cause very long compiling time for pig 0.10.0,
while using pig 0.8.1, everything is fine.
> A = load 'A.txt' using PigStorage()  AS (m: int);
> B = FOREACH A {
>     days_str = (chararray)
>         (m == 1 ? 31: 
>         (m == 2 ? 28: 
>         (m == 3 ? 31: 
>         (m == 4 ? 30: 
>         (m == 5 ? 31: 
>         (m == 6 ? 30: 
>         (m == 7 ? 31: 
>         (m == 8 ? 31: 
>         (m == 9 ? 30: 
>         (m == 10 ? 31: 
>         (m == 11 ? 30:31)))))))))));
> GENERATE
>    days_str as days_str;
> }   
> store B into 'B';
> and here's a simple input file example: A.txt
> 1
> 2
> 3
> The pig version we used in the test
> Apache Pig version 0.10.0-SNAPSHOT (rexported)

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