[jira] [Commented] (SPARK-19428) Ability to select first row of groupby

["Sohum Sachdev (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-19428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16195617#comment-16195617 ] 

Sohum Sachdev commented on SPARK-19428:
---------------------------------------

[~lminer] This is a very interesting point you brought up. I think it will make things much easier and we wouldn't need to use the Window function. I plan to take this task up and try to code a solution. Will add the PR link to this story when it's ready :) 

> Ability to select first row of groupby
> --------------------------------------
>
>                 Key: SPARK-19428
>                 URL: https://issues.apache.org/jira/browse/SPARK-19428
>             Project: Spark
>          Issue Type: Brainstorming
>          Components: SQL
>    Affects Versions: 2.1.0
>            Reporter: Luke Miner
>            Priority: Minor
>
> It would be nice to be able to select the first row from {{GroupedData}}. Pandas has something like this:
> {{df.groupby('group').first()}}
> It's especially handy if you can order the group as well.



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