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https://issues.apache.org/jira/browse/PIG-1610?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thejas M Nair updated PIG-1610:
-------------------------------
Summary: 'union onschema' does handle some cases involving 'namespaced'
column names in schema (was: 'union onschema' does handle some cases involving
'namespaced' variable names)
> 'union onschema' does handle some cases involving 'namespaced' column names
> in schema
> -------------------------------------------------------------------------------------
>
> Key: PIG-1610
> URL: https://issues.apache.org/jira/browse/PIG-1610
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.8.0
> Reporter: Thejas M Nair
> Assignee: Thejas M Nair
> Fix For: 0.8.0
>
>
> case 1:
> grunt> describe f;
> f: {l1::a: bytearray,l1::b: bytearray}
> grunt> describe l1;
> l1: {a: bytearray,b: bytearray}
> grunt> dump f;
> (1,11)
> (2,22)
> (3,33)
> grunt> dump l1;
> (1,11)
> (2,22)
> (3,33)
> grunt> u = union onschema f, l1;
> grunt> describe u;
> u: {l1::a: bytearray,l1::b: bytearray}
> -- the dump u gives incorrect results
> grunt> dump u;
> (,)
> (,)
> (,)
> (1,11)
> (2,22)
> (3,33)
> case 2:
> grunt> u = union onschema l1, f;
> grunt> describe u;
> 2010-09-13 15:11:13,877 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
> 1108: Duplicate schema alias: l1::a
> Details at logfile: /Users/tejas/pig_unions_err2/trunk/pig_1284410413970.log
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