3
鉴于此包装:流利蒙戈COUNT()性能
public MongoCollection<TEntity> GetQuery<TEntity>() where TEntity : class
{
var query = DataBase.GetCollection<TEntity>(typeof(TEntity).Name + "s");
return query;
}
public long Count<TEntity>(System.Linq.Expressions.Expression<Func<TEntity, bool>> criteria) where TEntity : class
{
return this.GetQuery<TEntity>().AsQueryable().Count(criteria);
}
如果我调用COUNT(),将查询服务器上执行的文档here中规定?
var count = db<MyEntity>.Count(x => x.Foo = "foo");
谢谢你的快速周转! – rboarman 2011-06-08 01:03:04