TOBAG & TOTUPLE udfs ignores columns with null value; TOBAG does not use input
type to determine output schema
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Key: PIG-1656
URL: https://issues.apache.org/jira/browse/PIG-1656
Project: Pig
Issue Type: Bug
Reporter: Thejas M Nair
Assignee: Thejas M Nair
TOBAG & TOTUPLE udfs ignores columns with null value
{code}
R4= foreach B generate $0, TOTUPLE(null, id, null), TOBAG( id, null, id,null );
grunt> dump R4;
1000 (,1,) {(1),(1)}
1000 (,2,) {(2),(2)}
1000 (,3,) {(3),(3)}
1000 (,4,) {(4),(4)}
{code}
TOBAG does not use input type to determine output schema
{code}
grunt> B1 = foreach B generate TOBAG( 1, 2, 3);
grunt> describe B1;
B1: {{null}}
{code}
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