[PIG-1751] New logical plan: PushDownForEachFlatten fail in UDF with unknown output schema

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.8.0
• Fix Version/s: 0.8.0
• Component/s: impl
• Hadoop Flags: Reviewed
• Assignee: Daniel Dai
• Reporter: Daniel Dai
• Created: 02/Dec/10 19:24
• Updated: 17/Dec/10 22:47
• Resolved: 06/Dec/10 01:02

Description

The following script fail:

a = load '1.txt' as (a0:chararray);
b = load '2.txt' as (b0:chararray);
c = foreach b generate flatten(STRSPLIT(b0)) as c0;
d = join c by c0, a by a0;
dump d;

Error message:
Caused by: java.lang.NullPointerException
at org.apache.pig.newplan.logical.rules.PushDownForEachFlatten$PushDownForEachFlattenTransformer.getNonFlattenFieldUids(PushDownForEachFlatten.java:186)
at org.apache.pig.newplan.logical.rules.PushDownForEachFlatten$PushDownForEachFlattenTransformer.check(PushDownForEachFlatten.java:101)
at org.apache.pig.newplan.optimizer.PlanOptimizer.optimize(PlanOptimizer.java:108)
... 13 more