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From "Pi Song (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (PIG-310) Some nested order by queries fail in logical to physical translator
Date Thu, 24 Jul 2008 12:25:31 GMT

     [ https://issues.apache.org/jira/browse/PIG-310?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pi Song resolved PIG-310.
-------------------------

    Resolution: Fixed

Committed

Thanks Santhosh.

> Some nested order by queries fail in logical to physical translator
> -------------------------------------------------------------------
>
>                 Key: PIG-310
>                 URL: https://issues.apache.org/jira/browse/PIG-310
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: types_branch
>            Reporter: Alan Gates
>            Assignee: Santhosh Srinivasan
>            Priority: Critical
>             Fix For: types_branch
>
>         Attachments: sort_with_nested_project.patch
>
>
> The query:
> {code}
> a = load 'myfile';                                                                  
                         
> b = group a by $0;                                                                  
                                                                           
> c = foreach b {c1 = order $1 by $1; generate flatten(c1); };                        
                                                                           
> store c into 'outfile'
> {code}
> dies with the error message:
> java.io.IOException: Unable to store for alias: c [null]
>     at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.compile(HExecutionEngine.java:232)
>     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: org.apache.pig.backend.executionengine.ExecException
>     ... 10 more
> Caused by: org.apache.pig.impl.plan.VisitorException
>     at org.apache.pig.impl.logicalLayer.LogToPhyTranslationVisitor.visit(LogToPhyTranslationVisitor.java:726)
>     at org.apache.pig.impl.logicalLayer.LOSort.visit(LOSort.java:141)
>     at org.apache.pig.impl.logicalLayer.LOSort.visit(LOSort.java:35)
>     at org.apache.pig.impl.plan.DependencyOrderWalkerWOSeenChk.walk(DependencyOrderWalkerWOSeenChk.java:68)
>     at org.apache.pig.impl.logicalLayer.LogToPhyTranslationVisitor.visit(LogToPhyTranslationVisitor.java:651)
>     at org.apache.pig.impl.logicalLayer.LOForEach.visit(LOForEach.java:87)
>     at org.apache.pig.impl.logicalLayer.LOForEach.visit(LOForEach.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)
>     ... 9 more
> Caused by: org.apache.pig.impl.plan.PlanException: Attempt to connect operator Project[tuple][1]
- gates-Sat Jul 12 17:57:09 PDT 2008-16 which is not in the pla
>     at org.apache.pig.impl.plan.OperatorPlan.checkInPlan(OperatorPlan.java:254)
>     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:723)
>     ... 18 more

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