On Wed, Apr 22, 2009 at 9:48 PM, Stephen Frost <sfrost@snowman.net> wrote:
> Erm.. Prepared queries is about using PQexecPrepared(), not about
> sending a text string as an SQL EXECUTE(). PQexecPrepared takes an
> array of arguments. That gets translated into a Bind command in the
> protocol with a defined number of parameters and a length for each
> parameter being passed. That removes any need for scanning/parsing the
> string sent to the backend. That's the savings I'm referring to.
I'd suggest this be mentioned in the sql-prepare documentation, then,
because that documentation only discusses using prepared statements to
eliminate redundant planning costs. (I'm sure it's mentioned in the
API docs and elsewhere, but if it's a major intended use of PREPARE,
the PREPARE documentation should make note of it.)
--
Glenn Maynard
