I am considering to use a dialect number to identify oracle mode.

Initially, the new dialect code would only exist client side (causing
the fyracle lib to be loaded), with the wire and server only seeing
the current codes (1..3). Eventually, I might use it on the server
side too.

I was thinking that reserving 250 for oracle-mode could be a good
choice, as it does not stop regular FB development from using 4, 5
etc. The number 255 (-1) might be used in future for some error
condition, or something like that.

Any comments, thoughts?

Paul