looking up an element by value or index requires a sequential search, however, which can be slow if the list is long 按值或者索引查找需要顺序搜索,然而如果表很长则速度可能慢。
this allows for direct seek in the path index and provides better search performance than the sequential search for path values in the primary index 这便允许在path索引中直接查找,并为主索引中的路径值提供比按顺序搜索更好的搜索性能。
because all rows in the primary xml index corresponding to an xml binary large object are searched sequentially for large xml instances, the sequential search may be slow 由于是按顺序在与xml二进制大型对象相对应的主xml索引中的所有行中搜索大xml实例,所以按顺序搜索可能会很慢。