Function pgrx_pg_sys::innerrel_is_unique

pub unsafe fn innerrel_is_unique(
    arg_root: *mut PlannerInfo,
    arg_joinrelids: Relids,
    arg_outerrelids: Relids,
    arg_innerrel: *mut RelOptInfo,
    arg_jointype: JoinType,
    arg_restrictlist: *mut List,
    arg_force_cache: bool
) -> bool