On 2019-11-15 00:12, Clyde Eisenbeis cte677@... [firebird-support]
wrote:

> Thanks for clarifying! This is very useful info, especially the
> ibexpert.net [1] site.
>
> Is there a Firebird site that provides details such as CHAR and
> VARCHAR max sizes, pageSize size options, etc.?

Most of it is described in the Firebird 2.5 Language Reference:
https://firebirdsql.org/file/documentation/reference_manuals/fblangref25-en/html/fblangref25.html

Datatype sizes:
https://firebirdsql.org/file/documentation/reference_manuals/fblangref25-en/html/fblangref25-datatypes.html
Page sizes:
https://firebirdsql.org/file/documentation/reference_manuals/fblangref25-en/html/fblangref25-ddl-db.html

If you're using Firebird 3, also consult the Firebird 3 release notes
for things introduce or changed:
https://firebirdsql.org/file/documentation/release_notes/html/en/3_0/rlsnotes30.html

Mark