Search Postgresql Archives

Re: Why are there no inequality scans for ctid?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Re: hubert depesz lubaczewski 2013-06-28 <20130628085246.GA25949@xxxxxxxxxx>
> On Fri, Jun 28, 2013 at 02:21:10PM +0530, Atri Sharma wrote:
> > How would this be helpful for general use cases? Querying on tids on a
> > specific page doesn't seem too useful for any other case than the one
> > you mentioned above, and IMHO it seems to be the job of vacuum.
> > I may be missing something here though.
> 
> Vacuum doesn't move rows around (as far as I can tell by running vacuum
> ~ 100 times on bloated table).
> 
> And as for general case - sure. It's not really useful aside from bloat
> removal, but I think that bloat removal is important enough to warrant
> some help from Pg.

It would also be useful for querying broken tables where you "SELECT *
FROM badtable WHERE ctid < '(123,0)';" to avoid dying on a bad block.

Christoph
-- 
cb@xxxxxxxx | http://www.df7cb.de/


-- 
Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux