On Sat, Jan 12, 2013 at 5:16 PM, Horst Dehmer <horst(dot)dehmer(at)gmail(dot)com> wrote:
> Yes, the ids is something I don't like either.
> They carry additional semantics, which I cannot make go away.
> How are chances char(20) is more time efficient than numeric(20)?
> Disk space is no problem here.
What are the other tables like then?
The exact data types involved are at issue here, so it matters.