Fixes for Oracle 19c recursive query
Oracle has a slightly differnt syntax for CTEs require arguments, keyword "recursive" is not allowed.
This fixes the following error during initial installation:
nsoracle.c:1367:OracleSelect: error in `OCIStmtExecute ()': ORA-00905: missing keyword
SQL:
with recursive !>>>!object_hierarchy as (
select object_type, supertype
from acs_object_types
where object_type = coalesce(:object_type, (select object_type
from acs_objects
where object_id = :object_id))
union all
select t.object_type, t.supertype
from acs_object_types t,
object_hierarchy s
where t.object_type = s.supertype
)
select distinct callback, callback_type as type
from subsite_callbacks
where event_type = :event_type
and object_type in (select object_type from object_hierarchy)
