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https://issues.apache.org/jira/browse/PIG-442?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Santhosh Srinivasan updated PIG-442:
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Attachment: PIG-442_1.patch
New patch, PIG-442_1.patch which fixes the failing test case. The keys of the
map were not sorted when the error message is printed. The string comparison in
the unit test case, had one order and the failing test case had a different
order.
> Disambiguated alias after a foreach flatten is not accessible a couple of
> statements after the foreach
> ------------------------------------------------------------------------------------------------------
>
> Key: PIG-442
> URL: https://issues.apache.org/jira/browse/PIG-442
> Project: Pig
> Issue Type: Bug
> Affects Versions: types_branch
> Reporter: Santhosh Srinivasan
> Assignee: Santhosh Srinivasan
> Fix For: types_branch
>
> Attachments: PIG-442.patch, PIG-442_1.patch
>
>
> In statements following a foreach which flattens its cogrouped inputs,
> unambiguous column names are not accessible via the :: specifier. A
> reproducible case is given below:
> {code}
> grunt> a = load 'one' as (name, age, gpa);
> grunt> b = load 'two' as (name, age, height);
> grunt> c = cogroup a by name, b by name;
> grunt> d = foreach c generate flatten(a), flatten(b);
> grunt> e = group d by height;
> grunt> f = foreach e generate group, COUNT(d.a::height);
> 114501 [main] ERROR org.apache.pig.tools.grunt.GruntParser -
> java.io.IOException: Invalid alias: a::height in {a::name: bytearray,a::age:
> bytearray,gpa: bytearray,b::name: bytearray,b::age: bytearray,height:
> bytearray}
> at org.apache.pig.PigServer.parseQuery(PigServer.java:293)
> at org.apache.pig.PigServer.registerQuery(PigServer.java:258)
> at
> org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:432)
> at
> org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:242)
> {code}
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