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Thejas M Nair commented on PIG-2286: ------------------------------------ +1 > Using COR function in Piggybank results in ERROR 2018: Internal error. Unable > to introduce the combiner for optimization > ------------------------------------------------------------------------------------------------------------------------ > > Key: PIG-2286 > URL: https://issues.apache.org/jira/browse/PIG-2286 > Project: Pig > Issue Type: Bug > Components: impl, piggybank > Affects Versions: 0.9.0 > Reporter: Viraj Bhat > Assignee: Daniel Dai > Attachments: PIG-2286-1.patch, PIG-2286-2.patch > > > Usage of the COR function in a Pig script, results in an error. The > "studenttab5" contains student, age and gpa separated by "tab". > {code} > register /home/viraj/pig-svn/trunk/contrib/piggybank/java/piggybank.jar; > A = LOAD '/user/viraj/studenttab5' AS (name, age:double,gpa:double); > B = group A all; > C = foreach B generate group, COR(A.a, A.b); > dump C; > {code} > {quote} > 2011-09-14 17:03:22,001 [main] INFO > org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting > to hadoop file system at: hdfs://localhost:9000 > 2011-09-14 17:03:22,088 [main] INFO > org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting > to map-reduce job tracker at: localhost:9001 > 2011-09-14 17:03:22,960 [main] INFO > org.apache.pig.tools.pigstats.ScriptState - Pig features used in the script: > GROUP_BY > 2011-09-14 17:03:23,168 [main] INFO > org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MRCompiler - > File concatenation threshold: 100 optimistic? false > 2011-09-14 17:03:23,179 [main] INFO > org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.CombinerOptimizer > - Choosing to move algebraic foreach to combiner > 2011-09-14 17:03:23,186 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR > 2018: Internal error. Unable to introduce the combiner for optimization. > {quote} > Viraj -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira