Le 2014-07-17 à 09:08, Arup Rakshit <[email protected]> a écrit :
> How can I group all children by their parent ? > > id email parent_id > 1 [email protected] nil > 2 [email protected] 1 > 3 email 1 > 4 email 2 > 5 email nil > 6 email 3 ORDER BY parent_id, id ? François Beausoleil -- Sent via pgsql-general mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
