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https://issues.apache.org/jira/browse/PIG-669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Gates resolved PIG-669.
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Resolution: Not A Problem
This is correct behavior. SUM does not accept two arguments.
> Bug in Schema comparison for casting
> ------------------------------------
>
> Key: PIG-669
> URL: https://issues.apache.org/jira/browse/PIG-669
> Project: Pig
> Issue Type: Bug
> Environment: i686 i386 GNU/Linux
> Reporter: Araceli Henley
>
> 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 );
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