> -----Original Message-----
> From: [email protected] [mailto:rsyslog-
> [email protected]] On Behalf Of RB
> Sent: Monday, April 20, 2009 7:43 PM
> To: rsyslog-users
> Subject: Re: [rsyslog] RFC: On rsyslog output modules and support
> forbatchoperations
> 
> On Mon, Apr 20, 2009 at 10:33, Rainer Gerhards
> <[email protected]> wrote:
> > Excellent, but let me re-phrase: if you have a PostgreSQL expert at
> hand,
> > that would be even more useful (I can do testing with PostgreSQL
> myself, but
> > do not have access to Oracle - I overlooked that tiny little
> restriction when
> > posting ;)).
> 
> Perhaps more importantly for implementation-specific bits, perhaps we
> could clarify which we're discussing: procedures, functions, or
> prepared statements?  The thread seems to jump back & forth between
> stored procedures and prepared statements, and although they are
> similar and often have a pure-SQL interface, they are not implemented
> everywhere.
> 
> MySQL: PREPARE, CREATE PROCEDURE, CREATE FUNCTION
> PostgreSQL: PREPARE, CREATE FUNCTION
> Oracle: CREATE PROCEDURE, CREATE FUNCTION
> 
> So, for PosgreSQL, you'd do something like Luis' earlier post:
> 
> PREPARE rsyslog_insert(date, text) AS
>     INSERT INTO foo VALUES($1, $2);
> EXECUTE rsyslog_insert('20090420-06:00', "log1");
> EXECUTE rsyslog_insert('20090420-06:00', "log2");
> EXECUTE rsyslog_insert('20090420-06:00', "log3");

The real issue, as I see it, is "string vs. API call". Your sample above is
API-call, and this requires different ways of doing things. David is
suggesting doing EVERYTHING via a single exec() API call and that API
receives a single string. The string then describes the different modes. I
doubt that the single string approach actually works across databases (but
may be wrong ;)).

Thus it is not so important if it is prepared statement or stored procedure
or whatever - and I pick whatever seems to be useful to prove that it can't
be done via a single API call with different strings. The most problematic
part seems to be prepared statements, thus we slowly converge into that
direction.

Hope that clarifies (else *please* give me a wakup-call).

Rainer

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