hibernate - Rewriting HQL to convert right join to left join -

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i have following object model:

account  accounttransaction   has many-to-one account  paymentschedulepayment   has many-to-one accounttransaction  paymentscheduleperiod   has many-to-one account

and want hql find me paymentscheduleperiod active on given date , each 1 find latest paymentschedulepayment linked same account. there may no payments hence outer join.

i have query works fine:

select p.id, a.id, max( pay.accounttransaction.dttm ) paymentschedulepayment pay right join pay.accounttransaction.account a, paymentscheduleperiod p p.account = , p.fromdttm <= :date , p.todttm > :date group p.id, a.id

however this question having trouble because of ordering precedence of joins explained in accepted answer. 1 of comments avoid issues should use left outer join instead of right i'm not sure how rewrite hql of form

from account left join ... paymentschedulepayment

my, possibly incomplete, understanding in hql can outer joins via object model.

can suggest how can rewrite above suggested using left rather right joins?


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