Gunnar Lindholm <gunix(at)telia(dot)com> writes:
> I would like to know some what the maximum number of tables and
> databases that postgresql version 7.X supports.
There's no specific upper limit on either. You might start noticing
performance problems (due to OS directory lookups) above a few thousand
tables, depending on how well your filesystem copes with lots of files
in a directory.
regards, tom lane