> Does someone know if boolean types will exist in Firebird 2.0 or later?
> I know how to create a boolean domain, but I mean true boolen types.
>
> Booleans do not exist in Firebird 1.5 and I can remember discussions
> about booleans for Firebird 2.0, but the release notes for 2.0 do not
> mention them.

They are not in 2.0 so later.

We use a domain defined as char(1) with a check that the value is 'T'
or 'F', others use 0 or 1 in a smallint field.

It is not in the official roadmap at this stage.

Adam