mongodb性能优化
在索引中包含条件的所有列,可以使用索引形成的屏蔽来拒绝结果集中不合适的行对于需要排序的引用列,适当地创建索引可以避免排序考虑到管理上的开销,应避免在索引中使用多于5个的列对于多列索引,将查询中引用最多的列放在定义的前面不要在索引中包含经常修改或
在索引中包含条件的所有列,可以使用索引形成的屏蔽来拒绝结果集中不合适的行 对于需要排序的引用列,适当地创建索引可以避免排序 考虑到管理上的开销,应避免在索引中使用多于5个的列 对于多列索引,将查询中引用最多的列放在定义的前面 不要在索引中包含经常修改或进行插入、删除的列(主关键字和外来关键字除外) “$”符号不可以作为索引的首字母,”.”不能在索引名的任何位置出现.
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