From: | "Robert Haas" <robertmhaas(at)gmail(dot)com> |
---|---|
To: | jd(at)commandprompt(dot)com |
Cc: | "Greg Smith" <gsmith(at)gregsmith(dot)com>, "Josh Berkus" <josh(at)agliodbs(dot)com>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Simple postgresql.conf wizard |
Date: | 2008-12-03 21:37:25 |
Message-ID: | 603c8f070812031337q16a6ff42p48a0eb189cae12bd@mail.gmail.com |
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Lists: | pgsql-hackers |
> I can see an argument about constraint_exclusion but
> default_statistics_target I don't.
Why not? I don't want to accept a big increase in ANALYZE times (or
planning times, though I'm really not seeing that at this point)
without some benefit.
>> It seems unlikely that you would want 256 MB of checkpoint segments on
>> a database that is only 100 MB (or even 500 MB). But you might very
>> well want that on a database that is 1 TB.
>
> It also seems unlikely that you would hit 256MB of checkpoint segments
> on a 100MB database before checkpoint_timeout and if you did, you
> certainly did need them.
So why do we have this parameter at all?
...Robert
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