Re: Advice request : simultaneous function/data updates on many databases
| От | David G. Johnston |
|---|---|
| Тема | Re: Advice request : simultaneous function/data updates on many databases |
| Дата | |
| Msg-id | CAKFQuwZh-2pfr73XNUXg9CJtSDaVbiTOJYF4Dbre_6vs-JjcMA@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Advice request : simultaneous function/data updates on many databases ("David G. Johnston" <david.g.johnston@gmail.com>) |
| Ответы |
Re: Advice request : simultaneous function/data updates on manydatabases
|
| Список | pgsql-general |
On Wed, Mar 4, 2020 at 3:55 PM David G. Johnston <david.g.johnston@gmail.com> wrote:
On Wed, Mar 4, 2020 at 3:48 PM Rory Campbell-Lange <rory@campbell-lange.net> wrote:Any thoughts on how to wrap pl/pgsql function dropping and recreation code
within a wrapper pl/pgsql function?Not endorsing this but dynamic SQL works just fine (though can get hard to read). Use format() and EXECUTE ... USING liberally.
Or, more readable depending upon your trust level:
INSERT INTO dynamic_codes VALUES (1, 'DROP FUNCTION ...');
CREATE FUNCTION execute_dynamic(code_id int)
AS $$
sql_cmd := (SELECT val FROM dynamic_codes WHERE id = code_id);
EXECUTE sql_cmd;
$$;
SELECT execute_dynamic(1);
David J.
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