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Date: Wed, 4 May 2011 19:39:03 +0000 (UTC)
From: "Xuefu Zhang (JIRA)" <jira@apache.org>
To: pig-dev@hadoop.apache.org
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 <1976254531.22606.1304537943531.JavaMail.tomcat@hel.zones.apache.org>
Subject: [jira] [Created] (PIG-2039) IndexOutOfBounException for a case
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IndexOutOfBounException for a case
----------------------------------

                 Key: PIG-2039
                 URL: https://issues.apache.org/jira/browse/PIG-2039
             Project: Pig
          Issue Type: Bug
    Affects Versions: 0.9.0
            Reporter: Xuefu Zhang
            Assignee: Xuefu Zhang
             Fix For: 0.9.0


The following query gives an exception:

a = load '1.txt' as (a0:int, a1:int, a2:int);
b = group a by a0;
c = foreach b { c1 = limit a 10; c2 =  distinct c1.a1; c3 = distinct c1.a2; generate c2, c3;};
store c into 'output';

2011-05-04 12:36:01,720 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 2999: Unexpected internal error. Index: 0, Size: 0

Stack trace:

java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
        at java.util.ArrayList.RangeCheck(ArrayList.java:547)
        at java.util.ArrayList.get(ArrayList.java:322)
        at org.apache.pig.newplan.logical.expression.ProjectExpression.getFieldSchema(ProjectExpression.java:279)
        at org.apache.pig.newplan.logical.relational.LOGenerate.getSchema(LOGenerate.java:88)
        at org.apache.pig.newplan.logical.visitor.SchemaAliasVisitor.validate(SchemaAliasVisitor.java:60)
        at org.apache.pig.newplan.logical.visitor.SchemaAliasVisitor.visit(SchemaAliasVisitor.java:104)
        at org.apache.pig.newplan.logical.relational.LOGenerate.accept(LOGenerate.java:240)
        at org.apache.pig.newplan.DependencyOrderWalker.walk(DependencyOrderWalker.java:75)
        at org.apache.pig.newplan.PlanVisitor.visit(PlanVisitor.java:50)
        at org.apache.pig.newplan.logical.visitor.SchemaAliasVisitor.visit(SchemaAliasVisitor.java:99)
        at org.apache.pig.newplan.logical.relational.LOForEach.accept(LOForEach.java:73)
        at org.apache.pig.newplan.DependencyOrderWalker.walk(DependencyOrderWalker.java:75)
        at org.apache.pig.newplan.PlanVisitor.visit(PlanVisitor.java:50)
        at org.apache.pig.PigServer$Graph.compile(PigServer.java:1664)
        at org.apache.pig.PigServer$Graph.validateQuery(PigServer.java:1615)
        at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1586)
        at org.apache.pig.PigServer.registerQuery(PigServer.java:580)
        at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:930)
        at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:386)
        at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:176)
        at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:152)
        at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:76)
        at org.apache.pig.Main.run(Main.java:488)
        at org.apache.pig.Main.main(Main.java:109)


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