string query = "delete from myfusiontable where ROWID = 1"
        string sdata = "sql=" + HttpUtility.UrlEncode(query);
        ASCIIEncoding encoding = new ASCIIEncoding();
        byte[] data = encoding.GetBytes(sdata);

        // Create the request, encode the query in the body of the post
        HttpWebRequest req = (HttpWebRequest)
          WebRequest.Create("https://www.googleapis.com/fusiontables/v2/query");
        req.Method = "POST";
       req.ContentType = "application/x-www-form-urlencoded";
        req.ContentLength = data.Length;

        // Add the authentication header
        req.Headers.Add("Authorization: " + access_token);
        var t = req.Headers.AllKeys;

        Stream sout = req.GetRequestStream();
        sout.Write(data, 0, data.Length);
        sout.Close();
        try
        {
            HttpWebResponse res = (HttpWebResponse)req.GetResponse();
            StreamReader stIn = new StreamReader(res.GetResponseStream());
            return stIn.ReadToEnd();
        }
        catch (WebException e)
        {
            StreamReader stIn = new StreamReader(e.Response.GetResponseStream());
            return stIn.ReadToEnd();
        }