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List:       postgis-users
Subject:    Re: [postgis-users] SUM on rasters
From:       Stephen Crawford <src176 () psu ! edu>
Date:       2015-10-14 14:51:09
Message-ID: 561E6BDD.3050204 () psu ! edu
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Yes, I figured out I needed to use St_Union()....and also that it can 
exceed available memory :-)  But after some fine tuning it worked.  Thanks.

On 10/14/2015 10:27 AM, Pierre Racine wrote:
> If by "sum" you mean "merge" or "union" use ST_Union(). Be careful as the "sum" can \
> exceed available memory if they are too many rasters in the table. 
> > -----Original Message-----
> > From: postgis-users [mailto:postgis-users-bounces@lists.osgeo.org] On
> > Behalf Of Stephen Crawford
> > Sent: Monday, October 12, 2015 10:46 AM
> > To: PostGIS Users Discussion
> > Subject: [postgis-users] SUM on rasters
> > 
> > Hi,
> > 
> > I have a table of rasters.  I would like to SUM the entire table with
> > one raster as the result. Can somebody point me in to the correct
> > funtion to do this?
> > 
> > Thanks,
> > Steve
> > 
> > 
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