Adding result of two UDFs gives a syntax error
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Key: PIG-426
URL: https://issues.apache.org/jira/browse/PIG-426
Project: Pig
Issue Type: Bug
Components: impl
Affects Versions: types_branch
Reporter: Alan Gates
Assignee: Santhosh Srinivasan
Fix For: types_branch
A script like:
{code}
a = load 'studenttab10k' using PigStorage() as (name, age, gpa);
b = load 'votertab10k' as (name, age, registration, contributions);
c = cogroup a by name, b by name;
d = foreach c generate flatten(group), COUNT(a) + COUNT(b);
store d into 'output';
{code}
gives
{code}
java.io.IOException: Atomic field expected but found non-atomic field
at org.apache.pig.PigServer.registerQuery(PigServer.java:276)
at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:432)
at
org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:83)
at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:64)
at org.apache.pig.Main.main(Main.java:306)
Caused by: org.apache.pig.impl.logicalLayer.parser.ParseException: Atomic field
expected but found non-atomic field
at
org.apache.pig.impl.logicalLayer.parser.QueryParser.assertAtomic(QueryParser.java:262)
at
org.apache.pig.impl.logicalLayer.parser.QueryParser.AdditiveExpr(QueryParser.java:3671)
at
org.apache.pig.impl.logicalLayer.parser.QueryParser.InfixExpr(QueryParser.java:3612)
at
org.apache.pig.impl.logicalLayer.parser.QueryParser.FlattenedGenerateItem(QueryParser.java:3538)
at
org.apache.pig.impl.logicalLayer.parser.QueryParser.FlattenedGenerateItemList(QueryParser.java:3472)
at
org.apache.pig.impl.logicalLayer.parser.QueryParser.GenerateStatement(QueryParser.java:3416)
at
org.apache.pig.impl.logicalLayer.parser.QueryParser.NestedBlock(QueryParser.java:2902)
at
org.apache.pig.impl.logicalLayer.parser.QueryParser.ForEachClause(QueryParser.java:2305)
at
org.apache.pig.impl.logicalLayer.parser.QueryParser.BaseExpr(QueryParser.java:956)
at
org.apache.pig.impl.logicalLayer.parser.QueryParser.Expr(QueryParser.java:731)
at
org.apache.pig.impl.logicalLayer.parser.QueryParser.Parse(QueryParser.java:532)
at
org.apache.pig.impl.logicalLayer.LogicalPlanBuilder.parse(LogicalPlanBuilder.java:60)
at org.apache.pig.PigServer.registerQuery(PigServer.java:273)
{code}
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