On Wed, Aug 5, 2009 at 12:17 PM, Simon Greener <si...@spatialdbadvisor.com>wrote:
> > I have had to use ST_Transform as I have found the query even more > problematic when run against the original geodetic data. Projections are a very likely cause of topology errors for accurate data... how was it more problematic for geodetic data - more topology errors? Does: SELECT count(*) FROM mytable WHERE (geom IS NOT NULL) AND (NOT st_isvalid(st_transform(geom, 96687))); return anything for either of the tables? Rob :)
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