PushUpFilter fail when filter condition contains scalar
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Key: PIG-1669
URL: https://issues.apache.org/jira/browse/PIG-1669
Project: Pig
Issue Type: Bug
Components: impl
Affects Versions: 0.8.0
Reporter: Daniel Dai
Assignee: Daniel Dai
Fix For: 0.8.0
The following script fail:
{code}
a = load 'studenttab10k' as (name, age, gpa);
b = group a all;
c = foreach b generate AVG(a.age) as age;
d = foreach a generate name, age;
e = filter d by age > c.age;
dump e;
{code}
Stack:
ERROR 2243: Attempt to remove operator LOFilter that is still softly connected
in the plan
org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open
iterator for alias e
at org.apache.pig.PigServer.openIterator(PigServer.java:753)
at
org.apache.pig.tools.grunt.GruntParser.processDump(GruntParser.java:612)
at
org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:303)
at
org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:165)
at
org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:141)
at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:90)
at org.apache.pig.Main.run(Main.java:498)
at org.apache.pig.Main.main(Main.java:107)
Caused by: org.apache.pig.PigException: ERROR 1002: Unable to store alias e
at org.apache.pig.PigServer.storeEx(PigServer.java:877)
at org.apache.pig.PigServer.store(PigServer.java:815)
at org.apache.pig.PigServer.openIterator(PigServer.java:727)
... 7 more
Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 2042:
Error in new logical plan. Try -Dpig.usenewlogicalplan=false.
at
org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.compile(HExecutionEngine.java:308)
at org.apache.pig.PigServer.compilePp(PigServer.java:1350)
at
org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:1195)
at org.apache.pig.PigServer.storeEx(PigServer.java:873)
... 9 more
Caused by: org.apache.pig.impl.logicalLayer.FrontendException: ERROR 2000:
Error processing rule PushUpFilter. Try -t PushUpFilter
at
org.apache.pig.newplan.optimizer.PlanOptimizer.optimize(PlanOptimizer.java:120)
at
org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.compile(HExecutionEngine.java:276)
... 12 more
Caused by: org.apache.pig.impl.logicalLayer.FrontendException: ERROR 2243:
Attempt to remove operator LOFilter that is still softly connected in the plan
at
org.apache.pig.newplan.BaseOperatorPlan.remove(BaseOperatorPlan.java:161)
at
org.apache.pig.newplan.BaseOperatorPlan.removeAndReconnect(BaseOperatorPlan.java:423)
at
org.apache.pig.newplan.logical.rules.FilterAboveForeach$FilterAboveForEachTransformer.transform(FilterAboveForeach.java:263)
at
org.apache.pig.newplan.optimizer.PlanOptimizer.optimize(PlanOptimizer.java:110)
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