Re: ODBC driver over network very slow

Milan Sekanina <milan(at)sde(dot)cz> writes:
> We are running an application that uses psqlodbc driver on Windows XP to
> connect to a server and for some reason the download of data from the
> server is very slow. We have created a very simple test application that
> inserts a larger amount of data into the database and uses a simple
> "SELECT * from test" to download it back. The INSERT of 10MB takes about
> 4 seconds, while the SELECT takes almost 5 minutes (with basically
> nothing else running on both the network and the two computers). If we
> run the PostgreSQL server on the local machine so that the network is
> not used, both actions are very fast.

I seem to recall having seen similar reports not involving ODBC at all.
Try searching the mailing-list archives, but I think the cases we solved
involved getting rid of third-party add-ons to the Windows TCP stack.

regards, tom lane