[postgis-devel] Allowing use of PostGIS EXTENSION w/out raster - how to migrate to no-raster
strk at kbt.io
Mon Oct 9 02:03:06 PDT 2017
On Mon, Oct 09, 2017 at 04:26:36AM -0400, Regina Obe wrote:
> Sandro wrote:
> > 1) Move raster to its own extension "postgis_raster"
> > See https://trac.osgeo.org/postgis/ticket/3888
> > 2) Provide two versions of extension "postgis"
> > See https://trac.osgeo.org/postgis/ticket/3890
> > - How do users migrate to postgis that doesn't have raster ?
> > proposal 1: DROP EXTENSION postgis_raster
> > proposal 2: ALTER EXTENSION postgis UPDATE TO '<x>noraster'
> > Given the above, user needs to know the value of <x> with proposal 2 while
> > it doesn't with proposal 1. Or did you mean upon upgrade ?
> Proposal 2: If you are migrating to a version that wasn't even compiled with
> raster support and you came from one that did, all you have to do is
> ALTER EXTENSION postgis UPDATE; and your raster type and functions would
> be dropped because the postgis.control file would have default being
So you either specify what you want (including version) or the
behavior depend on how the system postgis was built.
Is that considered acceptable behavior for users ?
And it confirms users need to know more things (they need to know
how postgis was compiled on the system).
() Free GIS & Flash consultant/developer
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