[
https://issues.apache.org/jira/browse/PIG-2563?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Daniel Dai resolved PIG-2563.
-----------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
test-patch:
[exec] -1 overall.
[exec]
[exec] +1 @author. The patch does not contain any @author tags.
[exec]
[exec] +1 tests included. The patch appears to include 3 new or
modified tests.
[exec]
[exec] -1 javadoc. The javadoc tool appears to have generated 1
warning messages.
[exec]
[exec] +1 javac. The applied patch does not increase the total number
of javac compiler warnings.
[exec]
[exec] +1 findbugs. The patch does not introduce any new Findbugs
warnings.
[exec]
[exec] +1 release audit. The applied patch does not increase the
total number of release audit warnings.
javadoc warning is unrelated.
Patch committed to 0.10/trunk.
> IndexOutOfBoundsException: while projecting fields from a bag
> -------------------------------------------------------------
>
> Key: PIG-2563
> URL: https://issues.apache.org/jira/browse/PIG-2563
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.9.1, 0.10
> Reporter: Vivek Padmanabhan
> Assignee: Daniel Dai
> Fix For: 0.10, 0.11
>
> Attachments: PIG-2563-1.patch, PIG-2563-2.patch
>
>
> The below script fails with Pig 0.9 / Pig 0.10 but works fine for Pig 0.8.
> {code}
> A = load 'i1' as (a,b,c:chararray);
> B = load 'i2' as (d,e,f:chararray);
> C = cogroup A by a, B by d;
> D = foreach C {
> tmp = B.d;
> tmp_dis = distinct tmp;
> generate A,B,tmp_dis ; } ;
> E = foreach D generate B.(d,e) as v;
> dump E;
> {code}
> The script fails with the below exception. Looks like DereferenceExpression
> is using wrong schema to build inner schema.
> java.lang.IndexOutOfBoundsException: Index: 1, Size: 1
> at java.util.ArrayList.RangeCheck(ArrayList.java:547)
> at java.util.ArrayList.get(ArrayList.java:322)
> at
> org.apache.pig.newplan.logical.relational.LogicalSchema.getField(LogicalSchema.java:653)
> at
> org.apache.pig.newplan.logical.expression.DereferenceExpression.getFieldSchema(DereferenceExpression.java:167)
> at
> org.apache.pig.newplan.logical.relational.LOGenerate.getSchema(LOGenerate.java:88)
> at
> org.apache.pig.newplan.logical.visitor.TypeCheckingRelVisitor.visit(TypeCheckingRelVisitor.java:160)
> at
> org.apache.pig.newplan.logical.relational.LOGenerate.accept(LOGenerate.java:242)
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