發送短信 : Skyline-join in distributed databases

 _____      ______    _  _     _____    ______   
|  __ \\   /_   _//  | \| ||  |  ___|| |      \\ 
| |  \ ||   -| ||-   |  ' ||  | ||__   |  --  // 
| |__/ ||   _| ||_   | .  ||  | ||__   |  --  \\ 
|_____//   /_____//  |_|\_||  |_____|| |______// 
 -----`    `-----`   `-` -`   `-----`  `------`