Pay no attention to that DBI callback behind the curtain

I found an interesting use for the (undocumented) DBI callback mechanism recently.
You might find it interesting (in lieu of documentation, for now).

http://blog.timbunce.org/2008/05/01/pay-no-attention-to-that-callback-behind-the-curtain/

Tim.

• Pay no attention to that DBI callback behind the curtain by Tim Bunce