CREATE TABLE nga_tile_scaling (
  table_name TEXT PRIMARY KEY NOT NULL,
  scaling_type TEXT NOT NULL,
  zoom_in INTEGER,
  zoom_out INTEGER,
  CONSTRAINT fk_nts_gtms_tn FOREIGN KEY('table_name') REFERENCES gpkg_tile_matrix_set('table_name'),
  CHECK (scaling_type in ('in','out','in_out','out_in','closest_in_out','closest_out_in'))
);