Hrm, I thought there was something equivalent to an is_number()
function, which would have made this easy:
CASE WHEN is_number(x) THEN x ELSE NULL END;
But I can't seem to find one. Is there a historic reason such functions
don't exist?
On Mon, Oct 17, 2005 at 01:05:17PM -0700, TJ O'Donnell
On Sun, Oct 16, 2005 at 11:03:52AM +0200, Sim Zacks wrote:
create function uint_in(val cstring) returns uint2 as
$$
declare thisval int4;
begin
thisval=val::int4
if thisval between 0 and 65535 then
return (thisval-32768)::int2;
else
return 0;
end if;
end
$$ language 'plpgsql';
I was needing something similar last week, not to throw an error,
but to catch an error when 99% of my column's data is real, but some
is not (e.g. '1.2-1.4' or '32.7'). I wanted to do it in pure
SQL, but settled on this. Is there a way to do this in pure
SQL (so it will be faster)?
Declare x
I tried to create a new type with input and output functions in plpgsql and
it didn't work.
The error I got is there is no type uint2.
Is this because plpgsql does not allow you to create input/output fuctions?
It is a very simple function, so I didn't want to do it in C.
Is there a reason that it
On Sun, Oct 16, 2005 at 11:03:52AM +0200, Sim Zacks wrote:
I tried to create a new type with input and output functions in plpgsql and
it didn't work.
The error I got is there is no type uint2.
Is this because plpgsql does not allow you to create input/output fuctions?
It is a very simple
