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Shuxiong Ye edited comment on PHOENIX-1660 at 3/9/15 6:21 PM:
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Hi [~jamestaylor],
I am a student from Peking University, and I feel interested in this project.
I've created an issue [1], and please assign it to me.
I've created a pull request in github[2]. please help me to review it.
Thank you.
[1] https://issues.apache.org/jira/browse/PHOENIX-1715
[2] https://github.com/apache/phoenix/pull/40
was (Author: shuxi0ng):
Hi [~jamestaylor],
I am a student from Peking University, and I feel interested in this project.
I've create an issue [1], and please assign it to me.
[1] https://issues.apache.org/jira/browse/PHOENIX-1715
> 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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