Query plan can't recongnize join when sql has 'WHERE'

Please check the raw text query plan.
It also hasn't a query plan for "where" clauses.
It's graph query plan can make something if it's raw text query plan had informations.

I don't mean there should be query plan for "where".
When there is a 'where' clauses,the 'left outer join' is recongnized as 'inner join'.

Could you please inform the raw text query when you execute the query?

Oh,This is the raw text query of the Query.I misunderstood.Now, I think this issue is not a bug.
Join graph segments (f indicates final):
seg[0]: [0]
seg[1]: sd[0] (f)
seg[2]: autoint[0] (f)
seg[3]: default[0] (f)
seg[4]: [1]
seg[5]: cint[1]
Join graph nodes:
node[0]: complicatetable c(5/1)
node[1]: complicatetable2 c2(3/1) (sargs 1)
Join graph equivalence classes:
eqclass[0]: sd[0] cint[1]
Join graph edges:
term[0]: c.sd=c2.cint (sel 1) (join term) (mergeable) (inner-join) (indexable sd[0] cint[1]) (loc 0)
Join graph terms:
term[1]: c2.cint range (min inf_le 4) (sel 0.1) (rank 2) (sarg term) (not-join eligible) (indexable cint[1]) (loc 0)

Query plan:

temp(group by)
subplan: idx-join (inner join)
outer: iscan
class: c2 node[1]
index: pk_complicatetable2_cint term[1] (covers)
cost: 1 card 1
inner: iscan
class: c node[0]
index: pk_complicatetable_sd term[0]
cost: 1 card 5
cost: 2 card 5
sort: 1 asc
cost: 8 card 5

Query stmt:

select c.sd, c.autoint, c.[default] from complicatetable c, complicatetable2 c2 where (c2.cint<= ?:0 ) and c.sd=c2.cint group by c.sd

Closed in build 9.1.0.0021.