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From "Aakarsh Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-1660) Implement missing math built-in functions
Date Fri, 20 Feb 2015 05:41:11 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-1660?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14328580#comment-14328580
] 

Aakarsh Agarwal commented on PHOENIX-1660:
------------------------------------------

Hi James,
I downloaded eclipse and followed all the instructions to set it up and getting preferences
correct, but when I am running "IndexUtilTest.Java" as "JUnit Test", an error shows up throwing
"java.lang.ClassNotFoundException: org.apache.phoenix.util.IndexUtilTest". I do not understand
if my eclipse is set up to develop now, or I need to do anything more on this. Please guide
me through what to do next?


> 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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