On Tue, 12 Aug 2003, Tom Lane wrote: > I have just finished running some experiments that compared a series of > INSERTs issued via PQexec() versus preparing an INSERT command and then > issuing new-FE-protocol Bind and Execute commands against the prepared > statement. With a test case like the above (one target column and a > prepared statement like "insert into abc values($1)"), I saw about a 30% > speedup. (Or at least I did after fixing a couple of bottlenecks in the > backend's per-client-message loop.) [snip] > This leaves us with a bit of a problem, though, because there isn't any > libpq API that allows access to this speedup. I put in a routine to > support Parse/Bind/Execute so that people could use out-of-line > parameters for safety reasons --- but there's no function to do > Bind/Execute against a pre-existing prepared statement. (I had to make > a hacked version of libpq to do the above testing.) > > I'm beginning to think that was a serious omission. I'm tempted to fix > it, even though we're past feature freeze for 7.4. Comments?
I think it would be well worth waiting for this feature. I often bind parameters in Perl's DBD::Pg, looking to the future when that doesn't just handle quoting, but also uses faster cached prepared queries. It'd be great to see that in 7.4. Jon ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
