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From "Olga Natkovich (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-618) Bad error message when period rather than comma appears as separator in UDF parameter list
Date Fri, 09 Jul 2010 19:40:50 GMT

     [ https://issues.apache.org/jira/browse/PIG-618?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Olga Natkovich updated PIG-618:
-------------------------------

    Fix Version/s: 0.9.0

> Bad error message when period rather than comma appears as separator in UDF parameter
list 
> -------------------------------------------------------------------------------------------
>
>                 Key: PIG-618
>                 URL: https://issues.apache.org/jira/browse/PIG-618
>             Project: Pig
>          Issue Type: Bug
>          Components: impl
>    Affects Versions: 0.2.0
>            Reporter: Viraj Bhat
>             Fix For: 0.9.0
>
>
> Pig script generates the following compile-time error as it contains a period between
0.8 and 0.9 in the MYUDF parameter list. The "Invalid alias MYUDF" message should be changed
to something that is more meaningful for the user to trace.
> {code}
> register 'MYUDF.jar';
> A = load 'mydata.txt' using PigStorage() as (
>         col1:   int,
>         col2:   chararray,
>         col3:   long,
>         col4:   int
>         );
> B =  group A by (
>         col1,
>         col2
>         );
> C = foreach B generate
>         group,
>         MYUDF(A.col3, 0.0, 0.8. 0.9) as stat: (min, max);
> describe C;
> {code}
> ========================================================================================================
> java.io.IOException: Invalid alias: MYUDF in {group: (col1: int,col2: chararray),A: {col1:
int,col2: chararray,col
> 3: long,col4: int}}
>         at org.apache.pig.PigServer.parseQuery(PigServer.java:301)
>         at org.apache.pig.PigServer.registerQuery(PigServer.java:266)
>         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: MYUDF
in {group: (col1: int,col2
> : chararray),A: {col1: int,col2: chararray,col3: long,col4: int}}
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.AliasFieldOrSpec(QueryParser.java:6005)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.ColOrSpec(QueryParser.java:5863)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.BaseEvalSpec(QueryParser.java:4049)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.UnaryExpr(QueryParser.java:3946)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.CastExpr(QueryParser.java:3900)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.MultiplicativeExpr(QueryParser.java:3809)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.AdditiveExpr(QueryParser.java:3735)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.InfixExpr(QueryParser.java:3701)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.FlattenedGenerateItem(QueryParser.java:3627)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.FlattenedGenerateItemList(QueryParser.java:3550)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.GenerateStatement(QueryParser.java:3494)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.NestedBlock(QueryParser.java:2969)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.ForEachClause(QueryParser.java:2384)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.BaseExpr(QueryParser.java:1019)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.Expr(QueryParser.java:795)
>         at org.apache.pig.impl.logicalLayer.parser.QueryParser.Parse(QueryParser.java:590)
>         at org.apache.pig.impl.logicalLayer.LogicalPlanBuilder.parse(LogicalPlanBuilder.java:60)
>         at org.apache.pig.PigServer.parseQuery(PigServer.java:298)
> ========================================================================================================

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