On Tue, Mar 22, 2016 at 10:01 AM, Andres Freund <and...@anarazel.de> wrote:
> On 2016-03-22 12:41:43 +0300, Yury Zhuravlev wrote:
> > Do I understand correctly the only way know availability PREPARE it will
> > appeal to pg_prepared_statements?
> > I think this is not a good practice. In some cases, we may not be aware
> > the PREPARE made (pgpool). Moreover, it seems popular question in the
> > Internet:
> > What do you think about adding NOT EXIST functionality to PREPARE?
> Not very much. If you're not in in control of the prepared statements, you
> can't be sure it's not an entirely different statement. So NOT EXISTS
> doesn't really buy you anything, you'd still need to compare the
> statement somehow.
You're correct, but IMHO it should be used when you have control of
prepared statement... isn't it analogous to CREATE TABLE IF NOT EXISTS??
Fabrízio de Royes Mello
>> Timbira: http://www.timbira.com.br
>> Blog: http://fabriziomello.github.io
>> Linkedin: http://br.linkedin.com/in/fabriziomello
>> Twitter: http://twitter.com/fabriziomello
>> Github: http://github.com/fabriziomello