Filter equality does not work for tuples ----------------------------------------
Key: PIG-1221 URL: https://issues.apache.org/jira/browse/PIG-1221 Project: Pig Issue Type: Bug Components: impl Affects Versions: 0.5.0 Environment: Windows and Linux. Java 1.6 hadoop 0.20.1 Reporter: Neil Blue >From the documentation I understand that it should be possible to filter a >relation based on the equality of tuples. >http://wiki.apache.org/pig/PigTypesFunctionalSpec , >http://hadoop.apache.org/pig/docs/r0.5.0/piglatin_reference.html#deref: However with this data file -- indext.txt: (1,one) (1,ONE) (2,two) (22, twentytwo) (3,three) (3,three) I run this pig script: A = LOAD 'indext.txt' AS (t1:(a:int, b:chararray), t2:(a:int, b:chararray)); B = FILTER A BY t1==t2; DUMP B; Expecting the output: ((3,three),(3,three)) However there is an error: 2010-02-03 09:05:20,523 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 2067: EqualToExpr does not know how to handle type: tuple > Pig Stack Trace > --------------- > ERROR 2067: EqualToExpr does not know how to handle type: tuple > org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: > Unable to > open iterator for alias B > at org.apache.pig.PigServer.openIterator(PigServer.java:475) > at > org.apache.pig.tools.grunt.GruntParser.processDump(GruntParser.java: > 532) > at > org > .apache > .pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser. > java:190) > at > org > .apache > .pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:166 > ) > at > org > .apache > .pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:142 > ) > at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:89) > at org.apache.pig.Main.main(Main.java:397) > Caused by: org.apache.pig.impl.logicalLayer.FrontendException: ERROR > 1002: > Unable to store alias B > at org.apache.pig.PigServer.store(PigServer.java:530) > at org.apache.pig.PigServer.openIterator(PigServer.java:458) > ... 6 more > Caused by: org.apache.pig.backend.executionengine.ExecException: > ERROR 2067: > EqualToExpr does not know how to handle type: tuple > at > org > .apache > .pig.backend.hadoop.executionengine.physicalLayer.expressionOperat > ors.EqualToExpr.getNext(EqualToExpr.java:108) > at > org > .apache > .pig.backend.hadoop.executionengine.physicalLayer.relationalOperat > ors.POFilter.getNext(POFilter.java:148) > at > org > .apache > .pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator > .processInput(PhysicalOperator.java:231) > at > org > .apache > .pig.backend.local.executionengine.physicalLayer.counters.POCounte > r.getNext(POCounter.java:71) > at > org > .apache > .pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator > .processInput(PhysicalOperator.java:231) > at > org > .apache > .pig.backend.hadoop.executionengine.physicalLayer.relationalOperat > ors.POStore.getNext(POStore.java:117) > at > org > .apache > .pig.backend.local.executionengine.LocalPigLauncher.runPipeline(Lo > calPigLauncher.java:146) > at > org > .apache > .pig.backend.local.executionengine.LocalPigLauncher.launchPig(Loca > lPigLauncher.java:109) > at > org > .apache > .pig.backend.local.executionengine.LocalExecutionEngine.execute(Lo > calExecutionEngine.java:165) Thanks Neil -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.