Michael Fuhr wrote:
On Fri, Jul 27, 2007 at 01:49:28AM +0100, Dave Potts wrote:
What units does the distance function use? am I correct in thinking its
derrived from the srid type of the geometry column?
Distance/st_distance returns the distance between two geometries
in whatever units the geometries use (meters, feet, degrees, etc.).
So in the case of the British national grid srid 2770 the correct unit
to use is the meter
I assume you mean SRID 27700, in which case distances would be meters.
Thank You, its always nice to have a guess confirmed
Dave.
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