PostGIS ST_Length2D Prev 8.12. Measurement Functions Next Name ST_Length2D — Returns the 2D length of a linear geometry. Alias for ST_Length Synopsis +float +ST_Length2D(+`geometry `+a_2dlinestring`)`; Description Returns the 2D length of the geometry if it is a linestring or multi-linestring. This is an alias for ST_Length See Also ST_Length, ST_3DLength Prev Up Next ST_Length Home ST_3DLength