该环境中的所有sql语句将尝试从活动的优化概要文件中查找匹配项，而这种匹配是高效率、低开销的。
All SQL statements running in the environment will try to look for matches in the optimization profile that is active, and the matching is designed to be efficient with minimal overhead.
这种文件能较好的表现原图像的信息，但是占用空间比较大，打标效率低。
This kind of files can better reflect the original image information. However, it takes large space with low marking rate.
这种文件能较好的表现原图像的信息，但是占用空间比较大，打标效率低。
This kind of files can better reflect the original image information. However, it takes large space with low marking rate.
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