MongoDB Aggregation using official C# driver?

问题

I'm using the official C# driver.Have no idea to implement this:
Select MAX(TimeStamp) as MaxTimeStamp, ExtNo From AgentStatus Where TimeStamp>=@begin and TimeStamp <=@end Group By ExtNo
Any Help?Thanks!

回答1:

Already use MapReduce to solve the problerm :) A simple demo HERE

来源：https://stackoverflow.com/questions/14917362/mongodb-aggregation-using-official-c-sharp-driver