Corrige llamada a funciones del postgis

	  ON ais.location

	  USING gist (shape);

	CREATE OR REPLACE FUNCTION ais.create_shape()

	CREATE OR REPLACE FUNCTION ais.initialize_geom_and_dates()

	RETURNS TRIGGER

	LANGUAGE plpgsql

	AS \$\$

		BEGIN

			-- Make geometry

			IF NEW.longitude IS NOT NULL AND NEW.latitude IS NOT NULL THEN

				SELECT ST_SetSRID(ST_MakePoint(NEW.longitude, NEW.latitude), 4326) INTO NEW.shape;

				SELECT public.ST_SetSRID(public.ST_MakePoint(NEW.longitude, NEW.latitude), 4326) INTO NEW.shape;

			END IF;

			-- Generate UUID and initialize insert date

			IF TG_OP = 'INSERT' THEN

				NEW.inserted := now();

				NEW.uuid := uuid_generate_v4();

				NEW.uuid := public.uuid_generate_v4();

			END IF;

			NEW.updated := now();

			EXECUTE format('CREATE TRIGGER %I '

			   'BEFORE INSERT OR UPDATE '

			   'ON %s '

			   'FOR EACH ROW EXECUTE PROCEDURE ais.create_shape()', trigger_name, table_name);

			   'FOR EACH ROW EXECUTE PROCEDURE ais.initialize_geom_and_dates()', trigger_name, table_name);

		END;

	\$\$;