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https://issues.apache.org/jira/browse/PIG-2511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13205183#comment-13205183
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Russell Jurney commented on PIG-2511:
-------------------------------------
arg! For the first one, I meant:
a = { cat, dog, parrot, fox }
b = foreach a generate cat as dog, @;
expect: { cat, dog, parrot, fox}, /* cat and dog have the same value */
> Enable '*' to skip any fields that have already been generated and cast in
> other parts of the GENERATE, as in: foo = FOREACH my_relation GENERATE
> manipulate(foo1) as foo1, *;
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-2511
> URL: https://issues.apache.org/jira/browse/PIG-2511
> Project: Pig
> Issue Type: New Feature
> Components: grunt, parser
> Affects Versions: 0.9.1
> Reporter: Russell Jurney
> Labels: grunt, latin, newbie, pig
>
> This should work:
> grunt> good_dates = foreach filtered generate CustomFormatToISO(date, 'EEE,
> dd MMM yyyy HH:mm:ss Z') AS date, *;
> 2012-02-06 14:56:23,286 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
> 1108:
> <line 8, column 30> Duplicate schema alias: date
> 2012-02-06 14:56:23,286 [main] ERROR org.apache.pig.tools.grunt.Grunt -
> org.apache.pig.impl.plan.PlanValidationException: ERROR 1108:
> <line 8, column 30> Duplicate schema alias: date
> at
> org.apache.pig.newplan.logical.visitor.SchemaAliasVisitor.validate(SchemaAliasVisitor.java:74)
> at
> org.apache.pig.newplan.logical.visitor.SchemaAliasVisitor.visit(SchemaAliasVisitor.java:104)
> at
> org.apache.pig.newplan.logical.relational.LOGenerate.accept(LOGenerate.java:240)
> at
> org.apache.pig.newplan.DependencyOrderWalker.walk(DependencyOrderWalker.java:75)
> at org.apache.pig.newplan.PlanVisitor.visit(PlanVisitor.java:50)
> at
> org.apache.pig.newplan.logical.visitor.SchemaAliasVisitor.visit(SchemaAliasVisitor.java:99)
> at
> org.apache.pig.newplan.logical.relational.LOForEach.accept(LOForEach.java:74)
> at
> org.apache.pig.newplan.DependencyOrderWalker.walk(DependencyOrderWalker.java:75)
> at org.apache.pig.newplan.PlanVisitor.visit(PlanVisitor.java:50)
> at org.apache.pig.PigServer$Graph.compile(PigServer.java:1661)
> at org.apache.pig.PigServer$Graph.validateQuery(PigServer.java:1610)
> at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1582)
> at org.apache.pig.PigServer.registerQuery(PigServer.java:584)
> at
> org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:942)
> at
> org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:386)
> at
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:188)
> at
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:164)
> at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:69)
> at org.apache.pig.Main.run(Main.java:495)
> at org.apache.pig.Main.main(Main.java:111)
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