[postgis-users] ST_ClusterDBSCAN for "geography" data type?

Marco Boeringa marco at boeringa.demon.nl
Sun Dec 20 02:03:06 PST 2020


Hi,

Reading through the PostGIS documentation, I noticed the 
"ST_ClusterDBSCAN" function takes a distance as one of the inputs. Now 
the docs suggest the current algorithm only takes in "geometry" type 
data. Is that true? Based on the distance input variable, it would seem 
logical to have a "geography" variant as well, even if that is a 
considerably slower variant considering the more complex distance 
calculation.

Marco



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