[postgis-users] Aggregate Intersection?

[Curtis W. Ruck]

Does anyone know of a way of chaining functions to do an aggregate intersection?  I have a table where i have multiple polygons and i need a intersection(geometry set) function.

Could i possibly write my own in plpgsql by getting the geometry set and looping through the polygons and more or less recursivly return Intersection(the_geom[3],Intersection(the_geom[2],Intersection(the_geom[0],the_geom[1])) ?

Curtis

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/postgis-users/attachments/20061004/ea94d745/attachment.html>