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Richard Ding commented on PIG-1493: ----------------------------------- +1 > Column Pruner throw exception "inconsistent pruning" > ---------------------------------------------------- > > Key: PIG-1493 > URL: https://issues.apache.org/jira/browse/PIG-1493 > Project: Pig > Issue Type: Bug > Components: impl > Affects Versions: 0.7.0 > Reporter: Daniel Dai > Assignee: Daniel Dai > Fix For: 0.7.0, 0.8.0 > > Attachments: PIG-1493-1.patch > > > The following script fail: > {code} > a = load '1.txt' as (a0:chararray, a1:chararray, a2); > b = foreach a generate CONCAT(a0,a1) as b0, a0, a2; > c = foreach b generate a0, a2; > dump c; > {code} > Error message: > ERROR 2185: Column $0 of (Name: b: ForEach 1-50 Operator Key: 1-50) > inconsistent pruning > org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to > open iterator for alias c > at org.apache.pig.PigServer.openIterator(PigServer.java:698) > at > org.apache.pig.tools.grunt.GruntParser.processDump(GruntParser.java:595) > at > org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:291) > at > org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:162) > at > org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:138) > at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:90) > at org.apache.pig.Main.run(Main.java:451) > at org.apache.pig.Main.main(Main.java:103) > Caused by: org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: > Unable to store alias c > at org.apache.pig.PigServer.storeEx(PigServer.java:804) > at org.apache.pig.PigServer.store(PigServer.java:760) > at org.apache.pig.PigServer.openIterator(PigServer.java:680) > ... 7 more > Caused by: org.apache.pig.impl.plan.optimizer.OptimizerException: ERROR 2212: > Unable to prune plan > at > org.apache.pig.impl.logicalLayer.optimizer.PruneColumns.prune(PruneColumns.java:826) > at > org.apache.pig.impl.logicalLayer.optimizer.LogicalOptimizer.optimize(LogicalOptimizer.java:240) > at org.apache.pig.PigServer.compileLp(PigServer.java:1180) > at org.apache.pig.PigServer.storeEx(PigServer.java:799) > ... 9 more > Caused by: org.apache.pig.impl.plan.VisitorException: ERROR 2188: Cannot > prune columns for (Name: b: ForEach 1-50 Operator Key: 1-50) > at > org.apache.pig.impl.logicalLayer.ColumnPruner.prune(ColumnPruner.java:177) > at > org.apache.pig.impl.logicalLayer.ColumnPruner.visit(ColumnPruner.java:202) > at > org.apache.pig.impl.logicalLayer.LOForEach.visit(LOForEach.java:132) > at org.apache.pig.impl.logicalLayer.LOForEach.visit(LOForEach.java:47) > at > org.apache.pig.impl.plan.DependencyOrderWalker.walk(DependencyOrderWalker.java:69) > at org.apache.pig.impl.plan.PlanVisitor.visit(PlanVisitor.java:51) > at > org.apache.pig.impl.logicalLayer.optimizer.PruneColumns.prune(PruneColumns.java:821) > ... 12 more > Caused by: org.apache.pig.impl.plan.optimizer.OptimizerException: ERROR 2185: > Column $0 of (Name: b: ForEach 1-50 Operator Key: 1-50) inconsistent pruning > at > org.apache.pig.impl.logicalLayer.ColumnPruner.prune(ColumnPruner.java:148) -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.