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From "Jonathan Coveney (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PIG-2427) getSchemaFromString throws away the name of the tuple that is in a bag
Date Fri, 16 Dec 2011 01:29:30 GMT

    [ https://issues.apache.org/jira/browse/PIG-2427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13170664#comment-13170664
] 

Jonathan Coveney commented on PIG-2427:
---------------------------------------

I ran ant test-commit successfully on 0.10 and 0.9 as well
                
> getSchemaFromString throws away the name of the tuple that is in a bag
> ----------------------------------------------------------------------
>
>                 Key: PIG-2427
>                 URL: https://issues.apache.org/jira/browse/PIG-2427
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.9.0, 0.10, 0.11
>            Reporter: Jonathan Coveney
>            Assignee: Jonathan Coveney
>            Priority: Minor
>             Fix For: 0.9.0, 0.10, 0.11
>
>         Attachments: PIG2427.patch
>
>
> {code}Schema thing = Utils.getSchemaFromString("b:bag{t:tuple(x:int,y:int,z:int)}");
> System.out.println(thing.getField(0).schema.getField(0).alias); //returns null{code}
> This isn't a huge issue, but it does seem odd to throw away this information unnecessarily.
While any bag will of course have thus tuple and no other elements, it seems to violate the
principle of least astonishment: if the tuple name was specified, shouldn't it be kept around?
> Edit: I just found a case where this actually can be a bit annoying. If you want to pull
that tuple out of the bag, for whatever reason, you've now lost its name.

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