I don't think there is a way to provide variable number of inputs to a drill func currently. An easy way to make this work would be to include all of the parameters as a single string, separated by some delimiter, and then split the string into tokens.
On Fri, May 9, 2014 at 6:15 AM, Yash Sharma <[email protected]> wrote: > I am trying to implement a reflect UDF for allowing drill to use java > methods directly: > https://issues.apache.org/jira/browse/DRILL-345 > > I would be used like: > > SELECT reflect("java.lang.String", "valueOf", 1), > reflect("java.lang.String", "isEmpty"), > reflect("java.lang.Math", "max", 2, 3), > reflect("java.lang.Math", "min", 2, 3), > reflect("java.lang.Math", "round", 2.5), > reflect("java.lang.Math", "exp", 1.0), > reflect("java.lang.Math", "floor", 1.9)FROM src LIMIT 1; > > 1 true 3 2 3 2.7182818284590455 1.0 > > > > So, while the first 2 params would be strings, there can be any number of > parameters following them. > > How to I pass variable length arguments to any Drill Function? > Is something similar to this being done anywhere in the code? > > Peace, > Yash > -- Steven Phillips Software Engineer mapr.com
