Review Board 1.7.22


New logical plan: PushDownForEachFlatten fail in UDF with unknown output schema

Review Request #144 - Created Dec. 3, 2010 and submitted

Daniel Dai
PIG-1751
Reviewers
pig
xuefu
pig
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