IndexOutOfBoundsException: while projecting fields from a bag
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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
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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