I want to issue the following query with Left outer join, but I can't do it with the current specification, so I want it to be possible.

Select *
from "Sales Header" as H
left outer join "Sales Line" as L
on H."Document Type" = L."Document Type"
and H."No." = L."Document No."
and L.Type = '2'. // Item

In the current specification, only the following SQL can be issued, and this difference is very large under complicated conditions.

Select *
from "Sales Header" as H
left outer join "Sales Line" as L
on H."Document Type" = L."Document Type"
and H."No." = L."Document No."
where L.Type = '2'. // Item