Re: Catalogs design question

"Steve Howe" <howe@carcass.dhs.org> writes:
>> As long as there are at maximum 8 parameters allowed, this looks
>> practicable.

> There is no limit on the number of arguments.

You're both wrong: the limit is FUNC_MAX_ARGS, which hasn't been 8 in
quite some time.  It's presently 16 by default, and can be configured
higher at build time.

For the purposes of a frontend application, I think it's best to assume
that the specific limit is unknown --- ie, you should be able to
interoperate with a backend regardless of the FUNC_MAX_ARGS value it
was built with.
        regards, tom lane