src/Db.php
public function query($sql, $return = false)
    {
        $query = $this->getDb()->query($sql, true);
        if ($return) {
            return $query;
        }
    }
public function query($sql, $return = false)
    {
        $query = $this->getDb()->query($sql, true);
        if ($return) {
            return $query;
        }
    }
Executes a query and, optionally, returns the result

@param string $sql
@param bool $return
@return array|void