Обсуждение: materialized view
PostgreSql support materialized views ???
if not, there is something similar??
Thanks
Esteban kemp
Esteban, El 01/09/2004 3:09 PM, Esteban Kemp en su mensaje escribio: > PostgreSql support materialized views ??? There is a good doc about this at: http://www.varlena.com/varlena/GeneralBits/Tidbits/matviews.html -- Sinceramente, Josué Maldonado. "Al contacto del amor todo el mundo se vuelve poeta" - Platon
Hi guys, I installed PostgreSQL without readline (--without-readline), but how can add the readline support right now?? Am I supposed to reconfigure/make/make install to do that???? Regards, Marcelo Pereira Brazil _______________________________________________________ Yahoo! Acesso Grátis - navegue de graça com conexão de qualidade! http://br.acesso.yahoo.com/
On Wed, 2004-09-01 at 15:09, Esteban Kemp wrote: > PostgreSql support materialized views ??? > > if not, there is something similar?? PostgreSQL supports triggers which let you implement it yourself. Luckily for you and I, someone else has already done most of the work and made a documentation set for it. http://jonathangardner.net/PostgreSQL/materialized_views/matviews.html
On Wed, Sep 01, 2004 at 05:09:06PM -0400, Esteban Kemp wrote: > PostgreSql support materialized views ??? > > if not, there is something similar?? Hi Esteban, Postgres doesn't support materialized views, although I think there was some talk of implementing them a few months ago. Try searching pgsql.ru about this. There are several possible present alternatives, depending on your situation. First off, if your query on a view is running too slowly, look into optimizing the query itself to make it as fast as possible. If it's still too slow, and if either your data are relatively static or you don't need up-to-the-minute accuracy, the simplest solution is probably to just turn the view into a static table via "create table t as select * from v", then update that table periodically. This usually works well enough for my needs. If you need up-to-the-minute accuracy, you could turn the view itself into a table, then create triggers or rules on the tables used by the view to keep everything synched. So the answer really depends on how the view is defined, what you plan to use it for, and how often your database is updated. - Jeremy
Esteban Kemp schrieb: > PostgreSql support materialized views ??? > > if not, there is something similar?? This feature is not yet implemented. take a look at http://jonathangardner.net/PostgreSQL/materialized_views/matviews.html Daniel.
MaRCeLO PeReiRA wrote: > I installed PostgreSQL without readline > (--without-readline), but how can add the readline > support right now?? > > Am I supposed to reconfigure/make/make install to do > that???? Yes. -- Peter Eisentraut http://developer.postgresql.org/~petere/
On Wed, Sep 01, 2004 at 06:30:05PM -0300, MaRCeLO PeReiRA wrote: > I installed PostgreSQL without readline (--without-readline), but how > can add the readline support right now?? > > Am I supposed to reconfigure/make/make install to do that???? Yes. Maybe you can recompile only psql to save some time ... -- Alvaro Herrera (<alvherre[a]dcc.uchile.cl>) "Amanece. (Ignacio Reyes) El Cerro San Cristóbal me mira, cínicamente, con ojos de virgen"