[PIG-669] Bug in Schema comparison for casting

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem

Environment

i686 i386 GNU/Linux

• Assignee: Unassigned
• Reporter: Araceli Henley
• Created: 12/Feb/09 19:18
• Updated: 21/Sep/10 21:45
• Resolved: 21/Sep/10 21:45

Description

This is a bug int he Schema comparison for casting. This is a valid use of a cast in SUM, the first and second arguments are a cast to a Bag with an int.

ERROR 1045: Could not infer the matching function for org.apache.pig.builtin.SUM as multiple or none of them fit. Please use an explicit cast.

TEST: AggregateFunc_61

A =LOAD '/user/pig/tests/data/types/DataAll' USING PigStorage() AS ( Fint:int, Flong:long, Fdouble:double, Ffloat:float, Fchar:chararray, Fchararray:chararray, Fbytearray:bytearray, Fmap:map[], Fbag:BAG

{ t:tuple( name, age, avg ) }

, Ftuple name:chararray, age:int, avg:float) );
B =GROUP A ALL;
X =FOREACH B GENERATE SUM ( ( BAG

{tuple(int)} ) A.Fbag.age, ( BAG{tuple(int)}

) A.Fbag.age);
STORE X INTO '/user/pig/tests/results/araceli.1234465985/AggregateFunc_61.out' USING PigStorage();

Suggest you also try:
X =FOREACH B GENERATE SUM ( ( BAG

{tuple(int)}

) A.Fbag.age, A.Fint );

Issue Links

• is duplicated by: PIG-904 Conversion from double to chararray for udf input arguments does not occur