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Posted to dev@phoenix.apache.org by "James Taylor (JIRA)" <ji...@apache.org> on 2015/02/14 07:02:11 UTC

[jira] [Created] (PHOENIX-1661) Implement built-in functions for JSON

James Taylor created PHOENIX-1661:
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             Summary: Implement built-in functions for JSON
                 Key: PHOENIX-1661
                 URL: https://issues.apache.org/jira/browse/PHOENIX-1661
             Project: Phoenix
          Issue Type: Bug
            Reporter: James Taylor


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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