Re: Another small bug (pg_autovacuum)

From: Christopher Browne <cbbrowne(at)acm(dot)org>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Another small bug (pg_autovacuum)
Date: 2003-09-11 12:12:46
Message-ID: m3he3jv801.fsf@chvatal.cbbrowne.com
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matthew(at)zeut(dot)net ("Matthew T. O'Connor") wrote:
> On Wed, 2003-09-10 at 15:57, Bruce Momjian wrote:
>> I assume the attached patch is what you want done to fix this. Applied.
>>
>> It quotes table names for vacuum and analyze, and uppercases the
>> keywords for clarity.
>
> Yeah, this is basically what I meant, sorry I didn't get to it quicker.
>
> However, I tested it out a little and the patch you made doesn't work
> because it produces commands like:
>
> VACUUM ANALYZE "public.FooBar"
>
> Which doesn't work, so I made my own patch that creates commands like:
>
> VACUUM ANALYZE "public"."FooBar"
>
> This allows for mixed case schema names as well as tables.
>
> Adam, can you please give this a test as you are the person who caught
> the bug in the first place.

Something I am feeling a little suspicious of is that I haven't seen,
in the logs, pg_autovacuum looking at pg_ tables.

I know that if we don't periodically vacuum such system tables as
pg_class, pg_attribute, pg_statistic, and pg_type, they can get to
"pretty evil size."

[Rummaging around...] These tables are being added for template1, but
apparently not for "main" databases. That looks like a bit of a fly
in the ointment...
--
(format nil "~S(at)~S" "cbbrowne" "ntlug.org")
http://www.ntlug.org/~cbbrowne/rdbms.html
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