Wed, 22 Jun 2022 09:13:48 GMT 2022-06-22T09:13:48Z <div><div>with recursive tree as (</div><div>  select obj,</div><div>         sub,</div><div>         array[obj] as all_ancestors,</div><div>         array[knot_name] as ancestor_names</div><div>  from bounds left join knots on obj=knot_id</div><div>  where sub=1 and predicate='is_parent'</div><div><br></div><div>  union all</div><div><br></div><div>  select c.obj,</div><div>         c.sub,</div><div>         p.all_ancestors||c.obj,</div><div>         p.ancestor_names || knot_name</div><div>  from bounds c</div><div>     join tree p</div><div>      on c.sub = p.obj</div><div>     and c.obj <> ALL (p.all_ancestors) -- avoids endless loops</div><div>     left join knots on c.obj=knot_id</div><div>)</div><div>select all_ancestors,ancestor_names</div><div>from tree order by all_ancestors;</div></div><div><br></div> Info 2020-04-22 21:56:28