From: "luckyghio(at)katamail(dot)com" <luckyghio(at)katamail(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject:
Date: 2005-12-02 14:41:30
Message-ID: 62.11.83.58.1907980439.1133534490@webmail.katamail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

Good Morning,
I'm an italian student and I'm working on a project involving postgres. I'm sorry for my very bad english. I've some questions:
1)Does postgres upport semi-joins?
2)What about projections or selections in query tree writing? Does Postgres support algebraic space (in other word when/how Postgres process
algebraic operators? Are they used as common to reduce the size of the space that the search strategy has to explore?).
Thanks you all
Lucky

________________________________________________________________________
Offro&Cerco: CASA, LAVORO, VACANZE, ELETTRONICA, INCONTRI. Tutti gli
annunci sono online su Kataweb all'indirizzo http://www.offroecerco.it

Browse pgsql-hackers by date

  From Date Subject
Next Message luckyghio@katamail.com 2005-12-02 14:44:41 postgres questions (semi-joins, algebraic space)
Previous Message Tom Lane 2005-12-02 14:18:01 Re: Shared locking in slru.c