[postgis-users] How can i interchange(swap) the values of a band in postgis raster

[Pierre Racine]

Actually just ST_Band(rast, 2,1) would do the job...

> -----Original Message-----
> From: postgis-users-bounces at postgis.refractions.net [mailto:postgis-users-
> bounces at postgis.refractions.net] On Behalf Of Pierre Racine
> Sent: Wednesday, February 15, 2012 9:34 AM
> To: PostGIS Users Discussion
> Subject: Re: [postgis-users] How can i interchange(swap) the values of a band in
> postgis raster
> 
> Try something like ST_AddBand(ST_Band(rast, 2), rast, 1)
> 
> and have a look at the documentation:
> 
> http://postgis.refractions.net/documentation/manual-svn/RT_reference.html
> 
> > -----Original Message-----
> > From: postgis-users-bounces at postgis.refractions.net
> > [mailto:postgis-users- bounces at postgis.refractions.net] On Behalf Of
> > Zelio Fernandes
> > Sent: Wednesday, February 15, 2012 4:34 AM
> > To: postgis-users at postgis.refractions.net
> > Subject: [postgis-users] How can i interchange(swap) the values of a
> > band in postgis raster
> >
> > How can i interchange(swap) the values of a band in postgis raster.
> >
> > for example if there are 4 raster bands in the raster table and
> > suppose if if i want to interchange the value of band1 with band2, how
> > do i do it ....i did not find any such specific function in postgis
> > 2.0 .......can it be done using ST_SetValue???????
> >
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