[postgis-users] Infinite loop in st_intersects - because of incorrect data out of st_transform?

Sandro Santilli strk at keybit.net
Thu Jun 9 04:53:56 PDT 2011


On Thu, Jun 09, 2011 at 12:55:56PM +0200, Magnus Hagander wrote:
> On Thu, Jun 9, 2011 at 12:35, Sandro Santilli <strk at keybit.net> wrote:

> > The fix is in upgrading GEOS (3.3.0 is out).
> > If you can upgrade PostGIS you can also upgrade GEOS, right ?
> 
> Uh, that sounds like a major version rather than a patch version? Or
> do I not know how GEOS versions works?

It's a minor version. But yes, not a patch level.

> Applying a patch version is pretty trivial and makes no difference if
> it's GEOS or PostGIS. But if it's a new major version, that would
> require a whole new RPM-set to be released etc, and IIRC the version
> of geos is more or less "locked" to the version of postgis at release
> time? Not entirely sure though - Devrim, can you comment on that? GEOS
> 3.3.0 for older versions of postgis in the rpm repo, since it has an
> important bugfix?

Every new release in the 3.x.x series is backward compatible at the C-API
level. PostGIS uses the C-API.

Anyway, I'll consider backporting the fix to the 3.2 branch if packagers
think it'll help.

--strk; 

  ()   Free GIS & Flash consultant/developer
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