public void Close() { ClosePrepareStmt(); if (_hasSomeRow) { string realSql = "KILL " + _conn.threadId; //sql = "FLUSH QUERY CACHE;"; Connection killConn = new Connection(_conn.config); killConn.Connect(); killConn.CreateQuery(realSql, null).Execute(); _conn.ClearRemainingInputBuffer(); killConn.Disconnect(); } }