[PIG-2636] "duplicate uid in schema" error from script that uses multiple FOREACH on same relation

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Affects Version/s: 0.9.0
• Fix Version/s: 0.11
• Assignee: Unassigned
• Reporter: Pete Gieser
• Created: 06/Apr/12 19:55
• Updated: 04/Mar/13 06:52
• Resolved: 04/Mar/13 06:52

Description

The following script:

A = LOAD 'bug.in' AS a:tuple(x:int, y:int);
B1 = FOREACH A GENERATE a.x, a.y;
B2 = FOREACH A GENERATE a.x, a.y;
C = JOIN B1 BY x, B2 by x;

yields the following error:

org.apache.pig.impl.plan.PlanValidationException: ERROR 2270: Logical plan invalid state: duplicate uid in schema : B1::x#35:int,B1::y#36:int,B2::x#35:int,B2::y#36:int