[postgis-users] Units for distance function

Dave Potts dave.potts at pinan.co.uk
Thu Jul 26 17:49:28 PDT 2007

What units does the distance function use?  am I correct in thinking its 
derrived from the srid type of the geometry column?

So in the case of the British national grid srid 2770  the correct unit 
to use is the meter

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