Re: Proposal of hierarchical queries, a la Oracle
От | Evgen Potemkin |
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Тема | Re: Proposal of hierarchical queries, a la Oracle |
Дата | |
Msg-id | Pine.LNX.4.33.0211191630290.7456-100000@ns.terminal.ru обсуждение исходный текст |
Ответ на | Re: Proposal of hierarchical queries, a la Oracle (Joe Conway <mail@joeconway.com>) |
Список | pgsql-sql |
Joe, i've made it already,as send first 'Proposal ...' message,but found a small bug. within nearest days i'll fix it, and postthe patch to pgsql-patches. i've described why i can't use connectby() in message to Josh Berkus. i'll enhance CONNECT BY as clause, but not as function. i think it's more 'right' approach to make it:) regards, --- .evgen On Sat, 16 Nov 2002, Joe Conway wrote: > Josh Berkus wrote: > > Evgren, > > > > > >>I want to propose the patch for adding the hierarchical queries > >>posibility. > >>It allows to construct queries a la Oracle for ex: > >>SELECT a,b FROM t CONNECT BY a PRIOR b START WITH cond; > > > > > > You'll be thrilled to know that this has already been implemented in > > PostgreSQL 7.3, as a /contrib module, by Joe Conway. > > > I have it on my personal TODO to approach this for 7.4, but I'll be happy to > focus on other things if you'd like to take this on. The connectby() function > in contrib/tablefunc could be a good starting point for you. > > Joe
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