Re: suppress output for benchmarking

On Thu, Jan 19, 2006 at 11:46:29PM +0200, Hannu Krosing wrote:
> ??hel kenal p??eval, K, 2006-01-18 kell 22:35, kirjutas uwcssa:
> >  I am testing the performance of postgresql on a set of workloads.
> > However,
> > the output significantly affects the performance evaluation. Is there
> > a way
> > to by-pass all output of select statements so the timing reflects only
> > the 
> > query evaluation process?
> 
> If you do EXPLAIN ANALYSE QUERY instead of just QUERY, then the backend
> discards all rows returned and just gives back performance data

The flipside is that EXPLAIN ANALYZE adds it's own (non-trivial)
overhead to the query.
-- 
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
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