| From: | Marek Florianczyk <franki(at)tpi(dot)pl> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | pgsql-admin(at)postgresql(dot)org |
| Subject: | Re: performance problem - 10.000 databases |
| Date: | 2003-11-05 18:55:50 |
| Message-ID: | 1068058550.28821.188.camel@franki-laptop.tpi.pl |
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| Thread: | |
| Lists: | pgsql-admin |
W liście z śro, 05-11-2003, godz. 19:52, Tom Lane pisze:
> Marek Florianczyk <franki(at)tpi(dot)pl> writes:
> > Maybe reconnect is to often, but how to explain that reular queries like
> > select * from table1 ale much faster than \d's ? ( my post to Jeff )
>
> [ further experimentation... ] Ah-hah, I see the problem in 7.3, though
> not in 7.4 which is what I was testing to begin with. 7.4 is smarter
> about optimizing the LEFT JOINs that are used in \d's queries.
>
So how do you think
sould I try v7.4 on production machine and wait for stable version?
Or better use v7.3 with 3000 databases?
I have to do that till december.
Will this optimization solve problem "\d" queries, or just speed it up
few seconds ?
greetings
Marek
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