Subject Re: [Firebird-Architect] Domains and NOT NULL in PSQL
Author Dmitry Yemanov
"Claudio Valderrama C." <cvalde@...> wrote:
> Is TYPE OF in the standard?

Nope. And neither is BASED ON.

> Otherwise, what's wrong with BASED ON?

1) TYPE OF explicitly suggests that we deal with a datatype only and assumes

that constraints are being ignored.
2) TYPE OF requires no new keywords :-)

But generally, that's just a personal preference.