Re: Procedures

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От Bruce Momjian
Тема Re: Procedures
Дата
Msg-id 20200831172019.GG13613@momjian.us
обсуждение исходный текст
Ответ на Re: Procedures  (Bruce Momjian <bruce@momjian.us>)
Список pgsql-docs
On Tue, Aug 25, 2020 at 03:03:13PM -0400, Bruce Momjian wrote:
> On Tue, Aug 25, 2020 at 08:38:11PM +0200, Peter Eisentraut wrote:
> > On 2020-08-24 18:00, Bruce Momjian wrote:
> > > -    command, a procedure is called explicitly using
> > > -    the <xref linkend="sql-call"/> statement.
> > > +    command, a procedure is called in isolation using
> > > +    the <xref linkend="sql-call"/> command.  If the CALL command is not
> > > +    part of an explicit transaction, a procedure can commit, rollback,
> > > +    and begin new transactions during its execution, which is not possible
> > > +    in functions.
> > 
> > There are additional conditions for when a procedure can do transaction
> > control, and it also depends on the language.  It's not clear how much
> > detail we should give in a general section like this.  Often people read
> > this and then wonder why it doesn't work.
> 
> I have updated the patch to mention it is dependend on the server-side
> language.

Patch applied back through PG 11.

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EnterpriseDB                             https://enterprisedb.com

  The usefulness of a cup is in its emptiness, Bruce Lee




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