Re: [PERFORM] Is postgresql ca do the job for software deployed in ASP ou SaaS mode?

2006-07-03 Thread Guoping Zhang
Hi, Chris,   In your deployment, can you put a bit more detail if available? Many thanks!   My questions are:    a)  How do you resolve the connection pool issue?   b)  If each client application has many threads of connections to the remote server, what is the likely performance penalt

Re: [PERFORM] [BUGS] query very slow when enable_seqscan=on

2006-07-03 Thread Simon Riggs
On Mon, 2006-07-03 at 22:31 +0200, Tomasz Ostrowski wrote: > I have a very slow query when enable_seqscan=on and very fast when > enable_seqscan=off. My schema looks like this (relevant columns > only): > PS. Actual table and column names are different (they're in Polish) > but I've translated them

Re: [PERFORM] Is postgresql ca do the job for software deployed in

2006-07-03 Thread Craig A. James
Richard Broersma Jr wrote: Each table with-in the database is assigned an OID and is located inside the DB directory. So if there is a file-system limitation on the number of files with-in a given directory it would also be a limit to the number of tables that could be created for each databas

Re: [PERFORM] Is postgresql ca do the job for software deployed in ASP ou SaaS mode?

2006-07-03 Thread Chris Hoover
On 7/3/06, David Gagnon <[EMAIL PROTECTED]> wrote: Can I hope having several hundred of db on 1 db server?  Like 250 dbs =250 client = 360 000 tables !!!So is there a limit for the number of db in the db server ?(this spec isnot on the website)What about the performance? Can I expect to have the sa

Re: [PERFORM] Is postgresql ca do the job for software deployed in ASP ou SaaS mode?

2006-07-03 Thread Richard Broersma Jr
> Typically I will have 1db per client and around 150 tables per db. So > since I hope I didn`t work all those year for nothing .. I expect to > have bunch of clients witch means the same amount of db since I have 1 > db/client. > > Can I hope having several hundred of db on 1 db server? Lik

[PERFORM] Is postgresql ca do the job for software deployed in ASP ou SaaS mode?

2006-07-03 Thread David Gagnon
Hi all, I've been working on my personal project for 3.5 years now. I developed an ERP system in web/java. Now the people I will work with suggest to offers it in Saas mode. Which means my customer will connect to my website and found they ERP software and data there. It's not the deploy

Re: [PERFORM] optimizing LIKE '%2345' queries

2006-07-03 Thread Mario Weilguni
Am Sonntag, 2. Juli 2006 23:50 schrieb Gene: > Is there any way to create a reverse index on string columns so that > queries of the form: > > where column like '%2345'; > > can use an index and perform as fast as searching with like '2345%'? > > Is the only way to create a reverse function and cre