processing of unknown datatype

Dave Cramer <pg@fastcrypt.com> writes:

I have a function expecting a timestamp, cstring, cstring
if I pass it a timestamp, unknown, unkown it works?
if I pass it an unknown, unknown, unkown, it can't be found?

You sure it's "can't find it" and not "can't choose among multiple
functions of that name"?

regards, tom lane

You are correct, it can't choose

Dave
On Tue, 2004-01-06 at 19:47, Tom Lane wrote:

Dave Cramer <pg@fastcrypt.com> writes:

I have a function expecting a timestamp, cstring, cstring
if I pass it a timestamp, unknown, unkown it works?
if I pass it an unknown, unknown, unkown, it can't be found?

You sure it's "can't find it" and not "can't choose among multiple
functions of that name"?

regards, tom lane

--
Dave Cramer
519 939 0336
ICQ # 1467551

So how can I create a function that it will choose, the option of
casting is not available to me

Dave
On Tue, 2004-01-06 at 19:47, Tom Lane wrote:

Dave Cramer <pg@fastcrypt.com> writes:

I have a function expecting a timestamp, cstring, cstring
if I pass it a timestamp, unknown, unkown it works?
if I pass it an unknown, unknown, unkown, it can't be found?

You sure it's "can't find it" and not "can't choose among multiple
functions of that name"?

regards, tom lane

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--
Dave Cramer
519 939 0336
ICQ # 1467551

Dave Cramer <pg@fastcrypt.com> writes:

So how can I create a function that it will choose, the option of
casting is not available to me

If the inputs are all unknown, I think your only choice is to not have
more than one function of that name (and number of parameters).
Otherwise the system simply doesn't have a basis for making a choice.

regards, tom lane