これは私の通常のmysqlコマンドです
$query = $this->db->query("SELECT `house_details`.`houses_id` , `house_details`.`house_dis` , `house_details`.`house_type` , `house_details`.`area` , `house_details`.`cost` , `house_details`.`user_id` , `image`.`thumb_path`
FROM (
`house_details`
)
LEFT JOIN `image` ON `image`.`house_id` = `house_details`.`houses_id`
AND `house_details`.`status` =1
GROUP BY `houses_id` DESC
LIMIT $start,$limit ");
return $query->result();