GPKG_TILE_MATRIX top-level constant Null safety

String const GPKG_TILE_MATRIX

Implementation

const GPKG_TILE_MATRIX = """
  CREATE TABLE IF NOT EXISTS $TABLE_TILE_MATRIX_METADATA (
    table_name TEXT NOT NULL,
    zoom_level INTEGER NOT NULL,
    matrix_width INTEGER NOT NULL,
    matrix_height INTEGER NOT NULL,
    tile_width INTEGER NOT NULL,
    tile_height INTEGER NOT NULL,
    pixel_x_size DOUBLE NOT NULL,
    pixel_y_size DOUBLE NOT NULL,
    CONSTRAINT pk_ttm PRIMARY KEY (table_name, zoom_level),
    CONSTRAINT fk_tmm_table_name FOREIGN KEY (table_name) REFERENCES $TABLE_GEOPACKAGE_CONTENTS(table_name)
  );
""";