Re: Function caches wrong OID of temporary table?

Поиск
Список
Период
Сортировка
От Oliver Elphick
Тема Re: Function caches wrong OID of temporary table?
Дата
Msg-id 1094644315.2014.53.camel@linda
обсуждение исходный текст
Ответ на Function caches wrong OID of temporary table?  (Phil Endecott <spam_from_postgresql_general@chezphil.org>)
Список pgsql-general
On Wed, 2004-09-08 at 12:37, Phil Endecott wrote:
> Dear PostgreSQL experts,
>
> I have encountered a problem with temporary tables inside plpgsql
> functions.  I suspect that this is a known issue; if someone could
> confirm and suggest a workaround I'd be grateful.
>
> My function creates a couple of temporary tables, uses them, and drops
> them before returning:

...
> ERROR:  relation with OID 590209 does not exist
> CONTEXT:  PL/pgSQL function "f" line 18 at SQL statement
>
> (Line 18 is the insert-select statement.)
>
> I imagine that it has cached that one of the tables is object 590209,
> but has not noticed that the table has been dropped and recreated before
> the second invokation of the function.

That is correct.  You need to EXECUTE the command instead, so that it is
planned afresh each time it is used.

--
Oliver Elphick                                          olly@lfix.co.uk
Isle of Wight                              http://www.lfix.co.uk/oliver
GPG: 1024D/A54310EA  92C8 39E7 280E 3631 3F0E  1EC0 5664 7A2F A543 10EA
                 ========================================
     "Put on the whole armor of God, that ye may be able to
      stand against the wiles of the devil."
                                        Ephesians 6:11


В списке pgsql-general по дате отправления:

Предыдущее
От: Phil Endecott
Дата:
Сообщение: Function caches wrong OID of temporary table?
Следующее
От: Wes
Дата:
Сообщение: Re: How to determine a database is intact?