New Functions to be implemented in Postgis

version()
postgis_lib_version()
postgis_lib_build_date()
postgis_lib_build_date()
postgis_scripts_installed()
postgis_scripts_released()
postgis_geos_version()
postgis_proj_version()
postgis_uses_stats()
postgis_full_version()
length2d
length3d
length2d
AsEWKT
distance
AddBBOX
DropBBOX
Force_collection(geometry)
Force_2d(geometry)
Force_3dz(geometry)
Force_3d(geometry)
Force_3dm(geometry)
Force_3dm(geometry)
Force_4d(geometry)
box2d(geometry)
box3d(geometry)
extent(geometry)
zmflag(geometry)
HasBBOX(geometry)
ndims(geometry)
nrings(geometry)
npoints(geometry)
isvalid(geometry)
expand(geometry, 1000.23)
mem_size(geometry)
mem_size(geometry)
Accum(geometry)
Accum(geometry)
GeometryType(geometry)
StartPoint(geometry)
AsBinary(geometry)
SRID(geometry)
Dimension(geometry)
Envelope(geometry)
IsEmpty(geometry)
IsSimple(geometry)
IsClosed(geometry)
IsRing(geometry)
NumGeometries(geometry)
GeometryN(geometry, 5)
ExteriorRing(geometry)
NumInteriorRings(geometry)
InteriorRingN(geometry,2)
EndPoint(geometry)
GeomUnion(geometry,geometry)
Difference(geometry,geometry)
SymDifference(geometry,geometry)
GeomUnion(geometry,geometry)
Collect(geometry,geometry)
Dump(geometry)