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https://issues.apache.org/jira/browse/PIG-673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Gates reassigned PIG-673:
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Assignee: Daniel Dai
> several aggregate functions do not check the number of arguments and do not
> correctly check for a type "bag"
> ------------------------------------------------------------------------------------------------------------
>
> Key: PIG-673
> URL: https://issues.apache.org/jira/browse/PIG-673
> Project: Pig
> Issue Type: Bug
> Environment: i686 i386 GNU/Linux
> Reporter: Araceli Henley
> Assignee: Daniel Dai
> Fix For: 0.9.0
>
>
> DIFF expects two bags as the argument. But in this negative test case we pass:
> 1) there is a single argument to diff instead of two,
> 2) The argument should be a bag but is an int.
> TEST: AggregateFunc_190
> 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 DIFF( A.Fint) + DIFF( A.Fint);
> STORE X INTO
> '/user/pig/tests/results/araceli.1234381533/AggregateFunc_190.out' USING
> PigStorage();
> ERROR 1000: Error during parsing. Atomic field expected but found non-atomic
> field
> TEST AggregateFunc_1901
> 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 DIFF( A.Fint, A.Fint) + DIFF( A.Fint, A.Fint);
> STORE X INTO
> '/user/pig/tests/results/araceli.1234467894/AggregateFunc_1901.out' USING
> PigStorage();
> ERROR 1000: Error during parsing. Atomic field expected but found non-atomic
> field
> TEST AggregateFunc_1902
> 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 DIFF( A.Fint, A.Fint + A.Fint);
> STORE X INTO
> '/user/pig/tests/results/araceli.1234467894/AggregateFunc_1902.out' USING
> PigStorage();
> throws error: ERROR 1039: Incompatible types in Add Operator left hand
> side:bag right hand side:bag
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