Some nested order by queries fail in logical to physical translator
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Key: PIG-310
URL: https://issues.apache.org/jira/browse/PIG-310
Project: Pig
Issue Type: Bug
Affects Versions: types_branch
Reporter: Alan Gates
Fix For: types_branch
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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