Re: Strange problem with create table as select * from table;

From: Adrian Klaver <adrian(dot)klaver(at)gmail(dot)com>
To: depesz(at)depesz(dot)com
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-general(at)postgresql(dot)org
Subject: Re: Strange problem with create table as select * from table;
Date: 2011-11-04 20:57:04
Message-ID: 4EB451A0.8080202@gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general pgsql-hackers

On 11/04/2011 01:47 PM, hubert depesz lubaczewski wrote:
> On Fri, Nov 04, 2011 at 01:43:55PM -0700, Adrian Klaver wrote:
>>> Does it tell you anything?
>> You are very thorough.
>
> I hate mysteries. Especially the ones that break stuff.

Know the feeling.

>
>> I don't know enough about Postgres internals to be much help there.
>> All I can point out is the problem seemed to appear over roughly a
>> two month period 5/28/11-7/20/11.
>> Any new code or procedures rolled out then?
>> Any bug reports?
>
> not as far as I know, but I'll check with guys. Still - app changes
> shouldn't cause something like this in db?

Then it wouldn't be a bug:) Seriously, what should happen and what does
happen is very often different.

>
>> Given the turnover on this table it seems important everything is
>> 'normal' since 7/20/11.
>
> yes, but we can't do pg_reorg of the table (it has quite a lot of bloat)

Probably should have been clearer here. I would look at what information
is available for changes on 7/20-21/11.

>
> Best regards,
>
> depesz
>

--
Adrian Klaver
adrian(dot)klaver(at)gmail(dot)com

In response to

Browse pgsql-general by date

  From Date Subject
Next Message Tom Lane 2011-11-04 21:49:44 Re: Strange problem with create table as select * from table;
Previous Message hubert depesz lubaczewski 2011-11-04 20:47:22 Re: Strange problem with create table as select * from table;

Browse pgsql-hackers by date

  From Date Subject
Next Message Tom Lane 2011-11-04 21:49:44 Re: Strange problem with create table as select * from table;
Previous Message hubert depesz lubaczewski 2011-11-04 20:47:22 Re: Strange problem with create table as select * from table;