On 17 Jul 2002 at 21:00, Devdas Bhagat wrote:

> On 17/07/02 19:45 +0530, Shridhar Daithankar wrote:
> > And pgaccess.. haven't used it ever since I abondened RedHat.. Never found that 
> > on a default mandrake install and once I grew up to psql for everything, didn't 
> > miss that either..;-)
> Hey, I need to allow windows developers access to Pg, remember?
> /me uses psql (or more often, Perl).

Since topic has come to pg, I have few doubts to ask, 

1)In one of my app. I need non-blocking database connectionfrom libpq++. So 
that I can fire a query and later check whether query is done.

I have found that you can do that for one query. i.e. you can queue at the most 
one query per connection asynchronously. Any idea how you can do more than one 
query? so that I can retrieve results in random order.. pqsendquery/pqgetresult 
are no good. They send/retrieve only one query/result in pair..Not goo enough..

2)I want to vacuum a table periodically because it improves my app. throughput 
3 times. When I run 'vacuum verbose analyze table', it prints the statistics. 
If I can get that just that statistics, I can better decide/code when to 
trigger vacuum from client app. Would make my app. much better sulf tuning at 
runtime..

3)Not a question but again a request for comparison(RFC?..;-)). I am running a 
benchmark simulation where a single transaction involves update on a 100 row 
table and insert in a log table, which grows with transaction count.

I am getting 300tps on a P-III/500/256MB RAM machine with 100 row table 
vacuumed every 10K transactions. Is this good enough on database tuning part of 
it? I have allocated 15K buffers and database is started with -F option..

Bye
 Shridhar

--
Larkinson's Law:        All laws are basically false.



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