Shuxiong Ye created PHOENIX-1715:
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Summary: Implement Build-in math function Sign
Key: PHOENIX-1715
URL: https://issues.apache.org/jira/browse/PHOENIX-1715
Project: Phoenix
Issue Type: Sub-task
Reporter: Shuxiong Ye
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
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