Marc Mamin <m.ma...@intershop.de> wrote: > WITH RECURSIVE struc (pref, id, depth ) AS ( > SELECT '', node, 1 from forest where node= 4 > UNION ALL > SELECT (case when struc.pref= '' then '\' else struc.pref end )|| > '...' , > node, > struc.depth +1 > FROM forest JOIN struc ON parent=struc.id > ) > SELECT * FROM struc; > > (path,node,depth) > 4 1 > \... 5 2 > \...... 6 3 > > This is fine as long as I start with a given node (here node= 4). > > But How can I retrieve the complete structure in one query ?
Start with parent is null in the first query (instead of 'where node=4'). *untested* Andreas -- Really, I'm not out to destroy Microsoft. That will just be a completely unintentional side effect. (Linus Torvalds) "If I was god, I would recompile penguin with --enable-fly." (unknown) Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889° -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
