Folks,
Sorry, yes, I was creating a table. I have visualised the result QGIS and the
result looks right.
create table simon.si_result
as
select i.si_grouping_f_id, ST_Difference(s.geom,i.geom) as geom
from simon.si_grouping_f s
inner join
(select si_grouping_f_id, ST_Union(a.geom) as geom
from simon.si_grouping_f_store_f a
where geom is not null
group by si_grouping_f_id
) as i
on (s.id = i.si_grouping_f_id);
S
On Sun, 09 Aug 2009 00:47:30 +1000, Paragon Corporation <l...@pcorp.us> wrote:
> Paul,
>> It's odd for union to return no result.
>
> I think he may have been dumping into a new table thus no results message
> though I thought inserts stated the number of records created, but can't
> recall if a select .. into bulk load does or not.
>
>> I can confirm that my data is now successfully processed by PostGIS's
> ST_Union though it isn't all that fast:
>>
>> "Query returned successfully with no result in 5011922 ms." = 1hr 23min
> which is pretty slow.
>
> Simon is that correct that you were dumping into a new table?
> I assumed you got something if you said it works correctly now.
>
> Thanks,
> Regina
>
>
> _______________________________________________
> postgis-users mailing list
> postgis-users@postgis.refractions.net
> http://postgis.refractions.net/mailman/listinfo/postgis-users
>
--
SpatialDB Advice and Design, Solutions Architecture and Programming,
Oracle Database 10g Administrator Certified Associate; Oracle Database 10g SQL
Certified Professional
Oracle Spatial, SQL Server, PostGIS, MySQL, ArcSDE, Manifold GIS, FME, Radius
Topology and Studio Specialist.
39 Cliff View Drive, Allens Rivulet, 7150, Tasmania, Australia.
Website: www.spatialdbadvisor.com
Email: si...@spatialdbadvisor.com
Voice: +61 362 396397
Mobile: +61 418 396391
Skype: sggreener
Longitude: 147.20515 (147° 12' 18" E)
Latitude: -43.01530 (43° 00' 55" S)
NAC:W80CK 7SWP3
_______________________________________________
postgis-users mailing list
postgis-users@postgis.refractions.net
http://postgis.refractions.net/mailman/listinfo/postgis-users
