On Thu, 2007-08-16 at 02:06 +1200, Oliver Jowett wrote:
> roehm@it.usyd.edu.au wrote:
>
> > Which command granularity does the JDBC driver's autocommit have?
> > Does it commit after each client-side JDBC statement, or does it commit
> > each individual SQL statement on the server-side?
>
> It effectively commits after each client-side JDBC statement execution,
> even if you provide multiple semicolon-separated queries in a single
> statement. At the protocol level the driver converts a single JDBC
> statement into one or more groups of Parse/Bind/Execute messages,
> followed by a single Sync. You can see this if you look at the debugging
> produced with loglevel=2. Also see
> http://www.postgresql.org/docs/8.2/static/protocol-flow.html#PROTOCOL-FLOW-EXT-QUERY
Did this change with v3 protocol? I'm not positive, but I remember
thinking that it used to commit each statement individually quite a
while back, but that would have been in the days of the v2 protocol.
If that's the case, then maybe using v2 protocol would suffice for
executing multiple statements at a time with a single auto-commit?
But yeah, none of this really seems to apply to the original poster's
question anyway.
-- Mark Lewis
