[postgis-users] PostGIS Raster Area from a Clip

[BladeOfLight16]

On Mon, Oct 21, 2013 at 2:32 PM, Pierre Racine
<Pierre.Racine at sbf.ulaval.ca>wrote:

> Again why do ST_Union to compute the area when you could just sum() the
> areas?
>

Won't that only yield the same answer if you can guarantee no overlapping
geometries in the fazendas table? My understanding was that the other table
was the raster table (which it is reasonable to assume has no overlaps),
but we don't know if that's the case with this one.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/postgis-users/attachments/20131021/99748987/attachment.html>