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From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] Created: (PIG-311) Scripts using CROSS fail in logical to physical translator
Date Mon, 14 Jul 2008 21:36:31 GMT
Scripts using CROSS fail in logical to physical translator
----------------------------------------------------------

                 Key: PIG-311
                 URL: https://issues.apache.org/jira/browse/PIG-311
             Project: Pig
          Issue Type: Bug
    Affects Versions: types_branch
            Reporter: Alan Gates
             Fix For: types_branch


{code}
a = load 'myfile' as (name, age, gpa);                                                   
                    
b = load 'myotherfile' as (name, age, registration, contributions);                      
                                                  
c = filter a by age < 19 and gpa < 1.0;                                            
                                                                            
d = filter b by age < 19;                                                             
                                                                         
e = cross c, d;                                                                          
                                                                      
store e into 'outfile';
{code}

fails:

java.io.IOException: Unable to store for alias: e [null]
    at org.apache.pig.impl.plan.OperatorPlan.checkInPlan(OperatorPlan.java:252)
    at org.apache.pig.impl.plan.OperatorPlan.connect(OperatorPlan.java:140)
    at org.apache.pig.impl.physicalLayer.plans.PhysicalPlan.connect(PhysicalPlan.java:77)
    at org.apache.pig.impl.logicalLayer.LogToPhyTranslationVisitor.visit(LogToPhyTranslationVisitor.java:859)
    at org.apache.pig.impl.logicalLayer.LOStore.visit(LOStore.java:101)
    at org.apache.pig.impl.logicalLayer.LOStore.visit(LOStore.java:36)
    at org.apache.pig.impl.plan.DependencyOrderWalker.walk(DependencyOrderWalker.java:68)
    at org.apache.pig.impl.plan.PlanVisitor.visit(PlanVisitor.java:51)
    at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.compile(HExecutionEngine.java:229)
    at org.apache.pig.PigServer.compilePp(PigServer.java:556)
    at org.apache.pig.PigServer.execute(PigServer.java:482)
    at org.apache.pig.PigServer.store(PigServer.java:324)
    at org.apache.pig.PigServer.store(PigServer.java:310)
    at org.apache.pig.tools.grunt.GruntParser.processStore(GruntParser.java:173)
    at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:317)
    at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:77)
    at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:58)
    at org.apache.pig.Main.main(Main.java:311)
Caused by: java.lang.NullPointerException
    ... 18 more

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