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Posted to dev@pig.apache.org by "Allan Avendaño (JIRA)" <ji...@apache.org> on 2012/09/12 11:59:08 UTC

[jira] [Updated] (PIG-2353) RANK function like in SQL

     [ https://issues.apache.org/jira/browse/PIG-2353?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Allan Avendaño updated PIG-2353:
--------------------------------

    Attachment: PIG-2353-5.txt

New approach to set counter into the MapReduce Job with PORank operator, only if there are PORank operator(s) on roots.

Two tests added (ten in total) with complex scripts which prove particular scenarios. 
                
> RANK function like in SQL
> -------------------------
>
>                 Key: PIG-2353
>                 URL: https://issues.apache.org/jira/browse/PIG-2353
>             Project: Pig
>          Issue Type: New Feature
>            Reporter: Gianmarco De Francisci Morales
>            Assignee: Allan Avendaño
>              Labels: gsoc2012, mentor
>         Attachments: PIG-2353-2, PIG-2353-3.txt, PIG-2353-4.txt, PIG-2353-5.txt, PIG2353.patch
>
>
> Implement a function that given a (sorted) bag adds to each tuple a unique, increasing identifier without gaps, like what RANK does for SQL.
> This is a candidate project for Google summer of code 2012. More information about the program can be found at https://cwiki.apache.org/confluence/display/PIG/GSoc2012
> Functionality implemented so far, is available at https://reviews.apache.org/r/5523/diff/#index_header

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