tests/queries/user_aggregation_1.mrql

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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *     http://www.apache.org/licenses/LICENSE-2.0
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E = source(line,"../tests/data/employee.txt",",",type(<name:string,dno:int,address:string>));

aggregation aggr(\(x:int,y:int):int.x+y,0):int;

aggr(select e.dno from e in E);

select (k,aggr(e.dno)) from e in E group by k: e.dno;

function ff (x:int,y:int):int { x+y };

aggregation aggr2(ff,0):int;

aggr2(select e.dno from e in E);

select (k,aggr2(e.dno)) from e in E group by k: e.dno;