ebean order by with oneToMany property with pagination - pagination

Question

I'm trying to get paginates orders, sorted on the cration date of the current version (currentVersion = true)
Here is the Order class :
#Entity
public class Offer extends Model {
#Id
public Long id;
....
#OneToMany(mappedBy = "offer", fetch = FetchType.EAGER)
public List<Version> versions;
...
}
Here is the version class
#Entity
public class Version extends Model {
#Id
public Long id;
#ManyToOne
#JoinColumn(name = "OFFER_ID")
public Offer offer;
public Boolean currentVersion = false;
public Date creation;
...
}
Here is the fetch code as I found on eBean documentation :
Query<Offre> query = Ebean.find(Offer.class);
List<Offer> offers = query.fetch("versions")
.where()
.eq("versions.currentVersion", true)
.orderBy("versions.creation desc nulls last")
.setFirstRow(0)
.setMaxRows(10)
.findPagedList().getList();
Here is the expected SQL
SELECT * FROM
(SELECT /*+ FIRST_ROWS(10) */ rownum rn_, a.* FROM
(SELECT t0.id c0,
...
t0.OPTLOCK c32
FROM offer t0
INNER JOIN version t1 on t0.id = t1.OFFER_ID
ORDER BY t1.creation
) a
WHERE rownum <= 10
) ; --bind()
Here is the actual SQL
First one:
SELECT *
FROM
(SELECT
/*+ FIRST_ROWS(10) */
rownum rn_,
a.*
FROM
( SELECT DISTINCT t0.id c0,
...
t0.id
...
FROM offer t0
JOIN versions u1 ON u1.OFFER_ID = t0.id
WHERE u1.current_version = true
AND u1.current_version = true
ORDER BY t0.id
) a
WHERE rownum <= 10
) ;
Second one :
SELECT t0.OFFER_ID c0,
t0.id c1,
...
t0.creation c3,
...
t0.current_version c12,
...
t0.OFFER_ID c30,
...
FROM versions t0
WHERE (t0.OFFER_ID) IN (990,991,992,993,994,995,996,997,998,999)
ORDER BY t0.creation;
Question : What do I need to change to get the expected SQL ?
Thank you very much for help
Versions used :
ebean 7.6.1 from play 2.5.14

Answer 1

I found a walk-around:
Instead of
List<Offer> offers = query.fetch("versions")
.where()
.eq("versions.currentVersion", true)
.orderBy("versions.creation desc nulls last")
.setFirstRow(0)
.setMaxRows(10)
.findPagedList().getList();
I've found :
List<Offer> offers = query.fetch("versions")
.where()
.eq("versions.currentVersion", true)
.orderBy("u1.creation desc") // <-- line with the change
.setFirstRow(0)
.setMaxRows(10)
.findPagedList().getList();
I make sure that the join between offer and versions is made only once and than assume that version join alias will be u1.
At least, it's doning the job.
Bye