--------------
id col
---------------------
1 TOM
2 18
3 USA
4 Liping
5 17
6 China
........
变为
---------------------------------
id no col
-----------------------------
1 1 TOM
2 1 18
3 1 USA
4 2 LiPing
5 2 17
6 2 China
...全文
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-------------- id col --------------------- 1 TOM 2 18 3 USA 4 Liping 5 17 6 China ........ 变为 --------------------------------- id no col ----------------------------- 1 1 TOM 2 1 18 3 1 USA 4 2 LiPing 5 2 17 6 2 China