postgresql7.1 select case when exists (select 1 from acs_object_types t where t.dynamic_p = 't' and t.object_type = :value) then 1 else 0 end select case when exists (select 1 from acs_object_types t1, acs_object_types t2 where t2.object_type not in (select g.rel_type from group_type_rels g where g.group_type = :group_type) and t1.object_type in ('membership_rel','composition_rel') and t2.tree_sortkey like t1.tree_sortkey || '%') then 1 else 0 end