hadoop-pig-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Olga Natkovich (JIRA)" <j...@apache.org>
Subject [jira] Created: (PIG-577) outer join query looses name information
Date Wed, 24 Dec 2008 01:04:44 GMT
outer join query looses name information
----------------------------------------

                 Key: PIG-577
                 URL: https://issues.apache.org/jira/browse/PIG-577
             Project: Pig
          Issue Type: Bug
    Affects Versions: types_branch
            Reporter: Olga Natkovich
             Fix For: types_branch


The following query:

A = LOAD 'student_data' AS (name: chararray, age: int, gpa: float);
B = LOAD 'voter_data' AS (name: chararray, age: int, registration: chararray, contributions:
float);
C = COGROUP A BY name, B BY name;
D = FOREACH C GENERATE group, flatten((IsEmpty(A) ? null : A)), flatten((IsEmpty(B) ? null
: B));
describe D;
E = FOREACH D GENERATE A::gpa, B::contributions;

Give the following error: (Even though describe shows correct information: D: {group: chararray,A::name:
chararray,A::age: int,A::gpa: float,B::name: chararray,B::age: int,B::registration: chararray,B::contributions:
float}

java.io.IOException: Invalid alias: A::gpa in {group: chararray,bytearray,bytearray}
        at org.apache.pig.PigServer.parseQuery(PigServer.java:298)
        at org.apache.pig.PigServer.registerQuery(PigServer.java:263)
        at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:439)
        at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:249)
        at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:84)
        at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:64)
        at org.apache.pig.Main.main(Main.java:306)
Caused by: org.apache.pig.impl.logicalLayer.parser.ParseException: Invalid alias: A::gpa in
{group: chararray,bytearray,bytearray}
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.AliasFieldOrSpec(QueryParser.java:5930)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.ColOrSpec(QueryParser.java:5788)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.BaseEvalSpec(QueryParser.java:3974)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.UnaryExpr(QueryParser.java:3871)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.CastExpr(QueryParser.java:3825)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.MultiplicativeExpr(QueryParser.java:3734)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.AdditiveExpr(QueryParser.java:3660)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.InfixExpr(QueryParser.java:3626)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.FlattenedGenerateItem(QueryParser.java:3552)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.FlattenedGenerateItemList(QueryParser.java:3462)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.GenerateStatement(QueryParser.java:3419)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.NestedBlock(QueryParser.java:2894)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.ForEachClause(QueryParser.java:2309)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.BaseExpr(QueryParser.java:966)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.Expr(QueryParser.java:742)
        at org.apache.pig.impl.logicalLayer.parser.QueryParser.Parse(QueryParser.java:537)
        at org.apache.pig.impl.logicalLayer.LogicalPlanBuilder.parse(LogicalPlanBuilder.java:60)
        at org.apache.pig.PigServer.parseQuery(PigServer.java:295)
        ... 6 more

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message