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Re: ODBC driver performance on large result-sets

From: "Alistair Bayley" <alistair(at)abayley(dot)org>
To: pgsql-odbc(at)postgresql(dot)org
Subject: Re: ODBC driver performance on large result-sets
Date: 2008-05-28 21:00:13
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-odbc
> Attached are two C programs. They borh (I believe) execute the same
> query against a PostgreSQL database on my WinXP laptop. The libpq
> version runs quickly (in a second or less), while the ODBC version
> takes about 40 seconds.

Never mind. I just noticed that the ODBC driver has "disable genetic
optimizer" checked. If I uncheck then presumably the query gets some
decent optimisation, and runs as quickly as the libpq version. Is this
a sensible default setting?

Sorry for the spam.


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