Also in the query rewrite vein, modifying a SELECT to get rid of a range-type predicate can increase performance by improving index key column matching.

另外，在查询重写状态下，修改SELECT来摆脱一个范围型谓词，可以通过提高索引键列匹配增强性能。

youdao

To evaluate the relationship between range, type, complication of retinal vein occlusion, RVO and visual damage.

目的：探讨视网膜静脉阻塞范围、分型、并发症与视力损害的关系。

youdao

To evaluate the relationship between range, type, complication of retinal vein occlusion, RVO and visual damage.

目的：探讨视网膜静脉阻塞范围、分型、并发症与视力损害的关系。

youdao