[PIG-5048] HiveUDTF fail if it is the first expression in projection

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.17.0, 0.16.1
• Component/s: impl
• Hadoop Flags: Reviewed
• Assignee: Nándor Kollár
• Reporter: Daniel Dai
• Created: 21/Oct/16 20:29
• Updated: 21/Jun/17 09:15
• Resolved: 09/Nov/16 18:02

Description

The following script fail:

define explode HiveUDTF('explode');
A = load 'bag.txt' as (a0:{(b0:chararray)});
B = foreach A generate explode(a0);
dump B;

Message: Unimplemented at org.apache.pig.data.UnlimitedNullTuple.size(UnlimitedNullTuple.java:31)

If it is not the first projection, the script pass:

define explode HiveUDTF('explode');
A = load 'bag.txt' as (a0:{(b0:chararray)});
B = foreach A generate a0, explode(a0);
dump B;

Thanks nkollar reporting it!