Re: [Gnumed-devel] Postgres query / display speed was Re: Release Candidate 1.0.rc3

[Karsten Hilbert]

On Wed, Sep 21, 2011 at 05:06:59PM +0200, Karsten Hilbert wrote:

> >  Doing an instring search on a single letter producing 8000 results * 60 
> > fields 
> > each  took about 4 seconds, but doing an instring search on 3 letters like 
> > '%amo%' took <100msec, once you've typed eg amoxi takes <30msec.  And all 
> > that 
> > without anything more than a primary key, no other indexes on any of the 
> > table 
> > fields.
> > 
> > Hence presuming your search routines using a delay timer which only flicks 
> > off 
> > the query to the server once the user stops typing
> 
> Which is exactly what we do in the phrasewheels - this being
> due to what Richard suggested doing many moons ago.

And doing an instring search on "cital 10" from within the complex

        brandname-or-component-name-with-amount

phrasewheel proved instantaneous, indeed, showing 7 brands
containing 10mg of citalopram.

:-)

Karsten
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