[wizzwizz4]

They should use the integer primary key of the users table, of course.

[piskov]

Nah, that’s too 1985.

Because client doesn’t know it, inserts can be slow in cross-db environment.

Guid is always better (can be client generated), and modern guid versions can be ordered chronologically

[TZubiri]

That's probably an implementation feature that is hidden and not dependable if it exists at all.

[oytis]

Please enter your integer primary key and password to log in.