select *,max(dmmt) from
orders_log ol
inner join log_actions la ON ol.`action` = la.`action`
inner join orders o on o.id=ol.orders_id
WHERE
ol.order_id = orders.id AND
la.is_technical = 0 AND
la.title = ':status'
group_by orders.id
select * from
orders_log ol
inner join log_actions la ON ol.`action` = la.`action`
inner join orders o on o.id=ol.orders_id
WHERE
ol.order_id = orders.id AND
la.is_technical = 0 AND
la.title = ':status'
select *, max(dmmt) from
orders_log ol
inner join log_actions la ON ol.`action` = la.`action`
inner join orders o on o.id=ol.orders_id
WHERE
ol.order_id = orders.id AND
la.is_technical = 0
group by order_id
без having, т.к. он очень ресурсоемкий и на 100 тыс заказов (+ ~1млн статусов) думает долго.