[jira] [Updated] (PHOENIX-1660) Implement missing math built-in functions

["James Taylor (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PHOENIX-1660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

James Taylor updated PHOENIX-1660:
----------------------------------
    Issue Type: Improvement  (was: Bug)

> Implement missing math built-in functions
> -----------------------------------------
>
>                 Key: PHOENIX-1660
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1660
>             Project: Phoenix
>          Issue Type: Improvement
>            Reporter: James Taylor
>            Assignee: Shuxiong Ye
>              Labels: Java, SQL, gsoc2015, mentor
>             Fix For: 5.0.0, 4.5.0
>
>
> 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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