7.4 A note on PostGIS documentation

7.14

select
    st_length(
        st_geomfromtext(
            'LINESTRING(743238 2967416,743238 2967450,743265 2967450, 
            743265.625 2967416,743238 2967416)',
            2249
        )
    );

-- Transforming WGS 84 LINESTRING to Massachusetts State Plane Meters

7.15

select
    st_length(
        st_transform(
            st_geomfromewkt(
                'srid=4326;linestring(-72.1260 42.45, -72.1240 42.45666, -72.123 42.1546)'
            ),
            26986
        )
    );