CREATE EXTENSION postgis;
CREATE SCHEMA ns1;

CREATE TABLE ns1.t1 (
    rast public.raster,
    CONSTRAINT t1_rast_check CHECK ((_raster_constraint_pixel_types(rast) = '{NULL}'::text[]))
);

insert into ns1.t1 (rast) values (ST_MakeEmptyRaster(2, 2, 0, 0, 1));



