Re: Insert performance, what should I expect?

On Wed, 2004-10-20 at 12:45, Robert Creager wrote:
> When grilled further on (Tue, 19 Oct 2004 22:12:28 -0400),
> Rod Taylor <pg@rbt.ca> confessed:
>
> > > I've done some manual benchmarking running my script 'time script.pl'
> > > I realise my script uses some of the time, bench marking shows that
> > > %50 of the time is spent in dbd:execute.
> > >
> > 1) Drop DBD::Pg and switch to the Pg driver for Perl instead (non-DBI
> > compliant) which has functions similar to putline() that allow COPY to
> > be used.
>
> COPY can be used with DBD::Pg, per a script I use:
>
> $dbh->do( "COPY temp_obs_$band ( $col_list ) FROM stdin" );
> $dbh->func( join ( "\t", @data ) . "\n", 'putline' );
> $dbh->func( "\\.\n", 'putline' );
> $dbh->func( 'endcopy' );

Thanks for that. All of the conversations I've seen on the subject
stated that DBD::Pg only supported standard DB features -- copy not
amongst them.

> With sets of data from 1000 to 8000 records, my COPY performance is consistent
> at ~10000 records per second.

Well done.