Hi all,
I investigated the AVG built-in Func, and do not understand why we need the static class: Initial,Intermediate,Final. What's difference between Algebraic UDF and Non-Algebraric, I think we can do the calculation in the exec in the same way for these two kinds of UDF. I debug it locally, and set break point there, but it seems like we never go to those piece of code. So what these static class used for?
