postgis -  functions -  public.polygonfromwkb

Description

Function properties

Usage

result = public.polygonfromwkb();

Code

CREATE FUNCTION polygonfromwkb(bytea, integer) RETURNS geometry
    AS $_$
    SELECT CASE WHEN geometrytype(GeomFromWKB($1,$2)) = 'POLYGON'
    THEN GeomFromWKB($1, $2)
    ELSE NULL END
    $_$
    LANGUAGE sql IMMUTABLE STRICT;