Re: Proposal of hierarchical queries, a la Oracle
От | Oleg Bartunov |
---|---|
Тема | Re: Proposal of hierarchical queries, a la Oracle |
Дата | |
Msg-id | Pine.GSO.4.44.0211151958380.13064-100000@ra.sai.msu.su обсуждение исходный текст |
Ответ на | Proposal of hierarchical queries, a la Oracle (Evgen Potemkin <evgent@ns.terminal.ru>) |
Ответы |
Re: Proposal of hierarchical queries, a la Oracle
|
Список | pgsql-sql |
Evgen, you'd need to post your message and patch to hackers mailing list. btw, did you try contrib/ltree module ? regards, Oleg On Fri, 15 Nov 2002, Evgen Potemkin wrote: > > Hi there! > > 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; > > I've seen this type of queries often made by adding a new type, which stores > position of row in the tree. But sorting such tree are very tricky (i > think). > > Patch allows result tree to be sorted, i.e. subnodes of each node will be > sorted by ORDER BY clause. > > with regards, evgen > > > > ---------------------------(end of broadcast)--------------------------- > TIP 2: you can get off all lists at once with the unregister command > (send "unregister YourEmailAddressHere" to majordomo@postgresql.org) > Regards, Oleg _____________________________________________________________ Oleg Bartunov, sci.researcher, hostmaster of AstroNet, Sternberg Astronomical Institute, Moscow University (Russia) Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/ phone: +007(095)939-16-83, +007(095)939-23-83
В списке pgsql-sql по дате отправления: