[postgis-users] ST_LineToCurve for less than 4 points

[Denis Rouzaud]

Hi,

Can someone tells me why ST_LineToCurve needs at least a linestring of 4 
points to be run?
If I have three points, I should be able to create a circularstring, right?

Here the error I have:
SELECT ST_LineToCurve(ST_GeomFromText('LINESTRING(554803.177682475 
145390.853708235,554796.469135702 145401.404724093,554769.634948609 
145404.042478058)'));
ERROR:  pta_desegmentize needs implementation for npoints < 4


Thanks a lot,

Denis