也许他们运气最好的时候在早期，那时他们试图把技术卖给其他搜索引擎，但没有人满意他们开出的价格，于是他们自己把它建立了起来。
Perhaps their biggest stroke of luck came early on when they tried to sell their technology to other search engines, but no one met their price, and they built it up on their own.
简介：向DB 2数据库添加索引通常是改善查询性能的最好方法，但添加索引也是有代价的。
Summary: Adding an index to a DB2 database is often the best way to improve query performance, but the addition can have trade-offs.
如果的确是上述情况，那么使用更大的缓冲池是最好的解决办法，但是为索引页增加更多的自由空间也有所帮助。
If this is the case, a larger buffer pool is the best solution, but adding more free space to index pages may also help.
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