Sufficool, Stanley wrote:
Would it be appropriate to make st_disjoint an SQL function just
wrapping _NOT_ st_intersects(...) ?
That's certainly how it's implemented in JTS and GEOS. I think PostGIS
has some more optimization code wrapped around that - but the same thing
should be possible at the PostGIS C library level.
--
Martin Davis
Senior Technical Architect
Refractions Research, Inc.
(250) 383-3022
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