ST_RemovePoint() - NULL index
:memory: #use in-memory database
SELECT ST_RemovePoint(GeomFromText('LINESTRING(0 0, 1 0, 1 1)'), NULL)
1 # rows (not including the header row)
1 # columns
ST_RemovePoint(GeomFromText('LINESTRING(0 0, 1 0, 1 1)'), NULL)
(NULL)
