func GetOutput(txHash string, vout uint) *model.Output {
    defer util.TimeTrack(time.Now(), "GetOutput", "mysqlprofile")
    txHashMatch := qm.Where(model.OutputColumns.TransactionHash+"=?", txHash)
    vOutMatch := qm.And(model.OutputColumns.Vout+"=?", vout)
    output, err := model.Outputs(txHashMatch, vOutMatch).OneG()