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https://issues.apache.org/jira/browse/PHOENIX-1660?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14351734#comment-14351734
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James Taylor commented on PHOENIX-1660:
---------------------------------------

Glad to have you aboard, [~sagar]. It looks like your version of Eclipse is 
pretty old. I'm using Version: Luna Service Release 1 (4.4.1). Make sure you 
use Java 1.7 as well. In general, if you're having setup problems, please post 
on the dev list and specifically ask the other GSoC participants for help (as 
many of them have just successfully gone through the setup process).

> Implement missing math built-in functions
> -----------------------------------------
>
>                 Key: PHOENIX-1660
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1660
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: James Taylor
>              Labels: Java, SQL, gsoc2015, mentor
>
> Take a look at the typical math functions that are implemented in relational 
> database systems 
> (http://www.postgresql.org/docs/current/static/functions-math.html) and 
> implement the same for Phoenix in Java following this guide: 
> http://phoenix-hbase.blogspot.com/2013/04/how-to-add-your-own-built-in-function.html
> Examples of missing functions include POWER, LOG, EXP, SQRT, CBRT, etc. As a 
> guide, examine how ROUND is implemented in Phoenix as an abstract function 
> with concrete functions per type: long, decimal, and date/time types.



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