For the purposes of discussion, our chosen index is a three-column index called IX1 created on (COLA, COLB, COLC).
为了便于讨论，我们选择的索引是一个三列索引，名为IX1，在(COLA,COLB,COLC)上创建。
Over the three-day festival, plus two days for setting up at cleaning up afterwards, Coca-Cola collected five tonnes of cans, 600kg of bottles and 450kg of LIDS that will all be recycled.
在3天的Sonisphere音乐节和之后的2天清尾工作中，可口可乐公司共回收5吨易拉罐，600公斤瓶子和450公斤饮料盖子。
Over the three-day festival, plus two days for setting up at cleaning up afterwards, Coca-Cola collected five tonnes of cans, 600kg of bottles and 450kg of LIDS that will all be recycled.
在3天的Sonisphere音乐节和之后的2天清尾工作中，可口可乐公司共回收5吨易拉罐，600公斤瓶子和450公斤饮料盖子。
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