Jack Cai

I have tried, can't generated code when have multi primary key in mysql. `PRIMARY KEY (`ops_id`, `rpt_no`)` exception `Sequence contains more than one matching element....`

Mono上运行，比较频繁的出现这个错 ``` System.Net.Sockets.SocketException: The socket is not connected at System.Net.Sockets.Socket.get_RemoteEndPoint () [0x00000] in :0 at SuperSocket.SocketEngine.SocketSession..ctor (System.Net.Sockets.Socket cli t) [0x00000] in :0 at SuperSocket.SocketEngine.AsyncSocketSession..ctor (System.Net.Sockets.Socket client, SuperSocket.SocketEngine.AsyncSocket.SocketAsyncEventArgsProxy socketA ncProxy, Boolean...