Re: [INTERFACES] ODBC Performance

On Tue, 13 Jul 1999, Ming-Hung Eng wrote:

> I want to copy a content of a Access table to a Postgres attached table via
> ODBC.
> There are 104000 entries.
> 
> The problem is the operation take more than 3 hours !!!
> 
> Do someone know why and what's wrong for me.

I've found for bulk copying like that, going through ODBC is terribly 
efficient.  You might be better off dumong your Access table to some sort 
of text-delimited file and using the COPY command in pgsql.  It is far 
faster.

Als, check to see if you have the fsync option in use.  For bulk copying,
you will want to turn off the fsync funciton, since it slows down disk
operations.  Turn it back on, though, if you want to do transactional 
work or you could lose data if your server crashes.

Brett W. McCoy                                                   http://www.lan2wan.com/~bmccoy
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