Inheritance: extends Kdyby\Doctrine\Connection
 /**
  * @param null $params
  * @return null
  * @throws
  */
 public function execute($params = null)
 {
     $logger = $this->conn->getConfiguration()->getSQLLogger();
     if ($logger) {
         $logger->startQuery($this->sql, $this->params, $this->types);
     }
     $stmt = null;
     $attempt = 0;
     $retry = true;
     while ($retry) {
         $retry = false;
         try {
             $stmt = $this->stmt->execute($params);
         } catch (\Exception $e) {
             if ($this->conn->validateReconnectAttempt($e, $attempt)) {
                 $this->conn->close();
                 $this->createStatement();
                 $attempt++;
                 $retry = true;
             } else {
                 throw $e;
             }
         }
     }
     if ($logger) {
         $logger->stopQuery();
     }
     $this->params = array();
     $this->types = array();
     return $stmt;
 }
 /**
  * @param null $params
  * @return null
  * @throws
  */
 public function execute($params = null)
 {
     $stmt = null;
     $attempt = 0;
     $retry = true;
     while ($retry) {
         $retry = false;
         try {
             $stmt = $this->stmt->execute($params);
         } catch (\Exception $e) {
             if ($this->conn->canTryAgain($attempt) && $this->conn->getDriver()->isGoneAwayException($e)) {
                 $this->conn->close();
                 $this->createStatement();
                 $attempt++;
                 $retry = true;
             } else {
                 throw $e;
             }
         }
     }
     return $stmt;
 }