13DDistance - two 2D identical points
2:memory: #use in-memory database
3SELECT ST_3DDistance(MakePoint(1, 2), MakePoint(1, 2))
41 # rows (not including the header row)
51 # columns
6ST_3DDistance(MakePoint(1, 2), MakePoint(1, 2))
70.0
8
9