[postgis-devel] automatic BVOL on spatial columns

[strk at refractions.net]

On Mon, Jan 10, 2005 at 02:05:46PM +0100, Markus Schaber wrote:
> Hi, Strk,
> 
> How is the BBox Cache supposed to survive a dump/reload of the database?
> 
> If we go the way of making the BBox Cache a compile-time decision, we do
> not have a problem.
> 
> But if it is to be done by the user manually, we have to make the cache
> presence bit part of our canonical representation. (We do not have to
> make the bbox itsself part of the canonical rep as we can recalculate it
> at reloading.)

Nooo! Not another extension ;)
If AUTOCACHE_BBOX is on (current default) canonical input will
compute bbox for COMPLEX_GEOMS (!points).
If AUTOCACHE_BBOX is off, the user is responsible to manually
add a cache.
--strk;
> 
> Thanks,
> Markus
> -- 
> markus schaber | dipl. informatiker
> logi-track ag | rennweg 14-16 | ch 8001 zürich
> phone +41-43-888 62 52 | fax +41-43-888 62 53
> mailto:schabios at logi-track.com | www.logi-track.com
> _______________________________________________
> postgis-devel mailing list
> postgis-devel at postgis.refractions.net
> http://postgis.refractions.net/mailman/listinfo/postgis-devel

-- 

For standing up against patentability of software,

  Thank You, Poland!

Read the intervention:    http://kwiki.ffii.org/ConsPolon041221En
Send your thanks:         thankyoupoland.info
Read/do more:		  http://www.noepatents.org/