Hello Haller!!!
> Your question about - pg_proc
> select t.typname from pg_type t , pg_proc p
> where p.proname = '<your_stored_procedure>' and p.proargtypes[0] = t.oid ;
> select t.typname from pg_type t , pg_proc p
> where p.proname = '<your_stored_procedure>' and p.proargtypes[1] = t.oid ;
> ...
> select t.typname from pg_type t , pg_proc p
> where p.proname = '<your_stored_procedure>' and p.proargtypes[7] = t.oid ;
>
> As far as I understand the proargtypes entries 0 means no further
parameter.
> This oidvector type of proargtypes seems to have a start index of 0.
> As long as there are at maximum 8 parameters allowed, this looks
practicable.
There is no limit on the number of arguments. An user could create a weird
function like this:
howe=# CREATE FUNCTION test2(int2, int2, int2, int2, int2, int2, int2, int2,
int2, int2, int2, int2, int2) RETURNS int4
AS 'SELECT 1 AS RESULT' LANGUAGE 'sql';
CREATE
and it would be allowed...
howe=# select proargtypes from pg_proc where proname='test';
proargtypes
----------------------------------------
21 21 21 21 21 21 21 21 21 21 21 21 21
(1 row)
Again, the problem is that I can't predict (nor limit) what users will try
to do...
Best Regards,
Steve Howe
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