thanks Adrian, exactly what I was missing :-)
about knowing if I should...
We have to create a set of triggers (insert, update, delete) within a huge set of tables. and that list of tables, and structure of them can be customized, maintained, ...
so we were looking for a standard script to automatize the building of the whole thing, taking list of columns and constraints (for PK) directly from pg_catalog.
Now it works :-)
but.. why do you ask that question ? is there any king of hidden wolf we didnt see ?
Marc MILLAS
Senior Architect
+33607850334
On 6/3/21 12:01 PM, Bruce Momjian wrote:
> On Thu, Jun 3, 2021 at 08:58:03PM +0200, Marc Millas wrote:
>> Hi,
>>
>> within a function, I want to create another function.
>> no pb.
>> but if I write:
>> declare bidule text;
>> begin
>> bidule:='myfunc';
>> create function bidule() ...
>>
>>
>> it does create a function named bidule and not myfunc.
>> so I am obviously missing something too obvious.
>
> You can't create functions inside of functions; same for procedures.
>
Sure you can:
CREATE OR REPLACE FUNCTION public.test_fnc()
RETURNS void
LANGUAGE plpgsql
AS $function$
DECLARE
bidule text;
BEGIN
bidule:='myfunc';
EXECUTE 'create function ' || bidule || '() RETURNS void language
plpgsql AS $fnc$ BEGIN END; $fnc$ ';
END;
$function$
select test_fnc();
test_fnc
----------
\df myfunc
List of functions
Schema | Name | Result data type | Argument data types | Type
--------+--------+------------------+---------------------+------
public | myfunc | void | | func
Whether you should is another question.
--
Adrian Klaver
adrian.klaver@aklaver.com
