Hi
0down votefavorite <http://stackoverflow.com/questions/39151509/need-apache-phoenix-udfs-guide#> I am new to apache phoenix.we need to write phoenix udfs. But I have found very limited documentation on it: on the blog : http://phoenix-hbase.blogspot.in/2013/04/how-to-add-your-own-built-in-function.html Above link just gives very simple function which has only single i/p and o/p type. I am searching since a week but could not find any document explaining how to write evaluate function which takes multiple parameters and can return different datatypes based on inputs. All I have currently is understanding phoenix source code of built in functions.which is cumbersome.Is there any comprehensive documentation of Phoenix UDFs. In addition please suggest how can I register overloaded udf from .sqlline command prompt please suggest how can I register overloaded udf from .sqlline command prompt . If we don't want to change ExpressionType enum, Is there any way I can register an overloaded/generic udf which can take any type of parameter and return type depends on inputs
