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From "Santhosh Srinivasan (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-424) nested foreach with flatten and agg gives an error
Date Fri, 19 Sep 2008 04:12:44 GMT

     [ https://issues.apache.org/jira/browse/PIG-424?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Santhosh Srinivasan updated PIG-424:
------------------------------------

    Attachment: PIG-424.patch

Attached patch (PIG-424.patch) addresses the following:

1. The schema computation in LOProject used references from its predecessor instead of making
a copy. The manipulation of the field schemas altered the schema of the predecessor

2. Added copy constructors for FieldSchema and Schema

All unit test cases pass.

> nested foreach with flatten and agg gives an error
> --------------------------------------------------
>
>                 Key: PIG-424
>                 URL: https://issues.apache.org/jira/browse/PIG-424
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: types_branch
>            Reporter: Olga Natkovich
>            Assignee: Santhosh Srinivasan
>             Fix For: types_branch
>
>         Attachments: PIG-424.patch
>
>
> Script:
> A = load 'data' as (name, age, gpa);
> B = group A by name;
> C = foreach B{
> D = order A by gpa;
> generate flatten(D), MAX(A.age);}
> store C into 'ciemo_4';
> Error:
> 08/09/08 17:25:48 ERROR pig.PigServer: Problem resolving LOForEach schema org.apache.pig.builtin.MAX
does not work with inputs of type {age: bytearray}
> 08/09/08 17:25:48 ERROR pig.PigServer: Severe problem found during validation org.apache.pig.impl.plan.PlanValidationException:
An unexpected exception caused the validation to stop
> 08/09/08 17:25:48 ERROR grunt.GruntParser: java.io.IOException: Unable to store for alias:
12 [Problem resolving LOForEach schema org.apache.pig.builtin.MAX does not work with inputs
of type {age: bytearray}Severe problem found during validation org.apache.pig.impl.plan.PlanValidationException:
An unexpected exception caused the validation to stop]
>         at org.apache.pig.PigServer.compileLp(PigServer.java:606)
>         at org.apache.pig.PigServer.compileLp(PigServer.java:547)
>         at org.apache.pig.PigServer.execute(PigServer.java:533)
>         at org.apache.pig.PigServer.registerQuery(PigServer.java:283)
>         at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:432)
>         at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:242)
>         at org.apache.pig.tools.grunt.GruntParser.parseContOnError(GruntParser.java:93)
>         at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:58)
>         at org.apache.pig.Main.main(Main.java:282)

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