CREATE TABLE polys (
      id   INTEGER PRIMARY KEY,
      xmin REAL,
      ymin REAL,
      xmax REAL,
      ymax REAL,
      name TEXT,
      n    INTEGER,
      ar_x TEXT,
      ar_y TEXT
    )
    
    CREATE TABLE points (
      id   INTEGER PRIMARY KEY,
      x    REAL,
      y    REAL,
      name TEXT
    )
    
    CREATE INDEX ix_polys ON polys (xmin, ymin, xmax, ymax)
    
    CREATE INDEX ix_points ON points (x, y)