comparison index信息详情
比较指标
comparison───n.比较;对照;比喻;比较关系
index───vi.做索引;vt.指出;编入索引中;n.指标;指数;索引;指针
comparison chart───对比图
rower comparison───赛艇比较
comparison between───在两者间比较
beyond comparison───adv.无以伦比
comparison theorem───[数]比较定理
comparison synonym───比较同义词
comparison definition───比较定义
If the index is being bypassed, then the RHS of the comparison should be type-cast.───如果会绕过索引,应该对比较表达式的RHS执行类型转换。
For comparison, Figure 3 illustrates the access plan where I forced the DB2 optimizer to ignore the index by adding the clause SELECTIVITY 1 to the predicate in the where clause.───为了便于比较,图3显示了通过将SELECTIVITY 1子句添加到where子句的谓词中,强迫db2优化器忽略索引的访问计划。
It says that the function must be used in an expression involving the comparison operation and that the search method "equals" of the index extension hash_index is referred to.───这说明,该函数必须在一个涉及比较操作并且引用了索引扩展hash _ index的搜索方法“equals”的表达式中使用。
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