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Posted to dev@pig.apache.org by "David Ciemiewicz (JIRA)" <ji...@apache.org> on 2013/02/28 17:19:13 UTC

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

    [ https://issues.apache.org/jira/browse/PIG-2353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13589632#comment-13589632 ] 

David Ciemiewicz commented on PIG-2353:
---------------------------------------

Did anyone look at the solution I proposed in JIRA PIG 821 for partitioned rank computation on billions of rows?  There may be better solutions but I do know that that one works without need for serialization of all rows, only on the histogram.
                
> 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
>             Fix For: 0.11
>
>         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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