Re: [Gnumed-devel] branching a test branch

[syan tan]

The same change also worked for clin.v_emr_journal.
I changed all the select ... from dem.v_staff to "select .. from
dem.staff v_staff" , and the journal literally just
flashes on the screen ;)

On Mon, 2006-12-11 at 16:15 +0100, Karsten Hilbert wrote:
> On Mon, Dec 11, 2006 at 08:40:32AM +1100, syan tan wrote:
> 
> > now that 8.2 works with child tables (after vacuum analyse , i think ),
> :-)
> 
> > the performance bug with clin.v_pat_narrative was traced to 
> > dem.v_staff; actually, there isn't a need to use dem.v_staff in
> > the query; use dem.staff instead,
> Done.
> 
> > and the performance is less
> > than a second (vs 10 minutes).
> Here is another tidbit which might decrease performance:
> 
> gnumed_v3=> explain SELECT * from clin.clin_narrative where modified_by = 
> 'gm-dbo';
>                            QUERY PLAN
> -----------------------------------------------------------------
>  Seq Scan on clin_narrative  (cost=0.00..22.50 rows=6 width=168)
>    Filter: (modified_by = 'gm-dbo'::name)
> 
> IOW, clin.v_pat_narrative does
> 
>       where clin.clin_narrative.modified_by = dem.staff.db_user
> 
> which lacks an index. I'll add one...
> 
> Karsten