Author's Blog

Custom Functions

queryadataset@hotmail.com — Wed, 25 Jun 2008 12:47:56 GMT

A customer has requested the ability to write custom functions. I think its a great idea!

I've completed re-organizing the code that implements all the internal functions. Internal function support was originally developed with this in mind, so it wasn't too bad. However, when I later added support for aggregate functions, I hadn't followed the same design pattern.

I'm not following the approach Microsoft took using attributes. Instead, you derived from a base call, override a couple of methods and register the function with the query engine.

Anyway, its coming in a the next week or so. I'm also including an application/assembly to demonstrate writing a custom function or aggregate.

The hardest part has been coming up with something practical and useful.

Back from the Middle East

queryadataset@hotmail.com — Wed, 12 Dec 2007 13:54:33 GMT

I'm back from the middle east. Man, that is a long way to travel.

I'll be looking at a few bug reports over the next couple of days.

Limited availability until December 12th

queryadataset@hotmail.com — Thu, 22 Nov 2007 03:27:09 GMT

I'm on business until December 12th.

Performance Tip

queryadataset@hotmail.com — Mon, 19 Nov 2007 12:35:01 GMT

Tips on how to improve query performance and reduce memory usage.

About that News Lette...

queryadataset@hotmail.com — Sun, 18 Nov 2007 15:35:34 GMT

Bulk mailing of first news letter.