On Sun, Feb 9, 2014 at 2:58 PM, Claudio Freire <klaussfreire@gmail.com> wrote:
> On Sun, Feb 9, 2014 at 7:32 PM, Sergey Konoplev <gray.ru@gmail.com> wrote:
>> Try pgcompact, it was designed particularily for such cases like yours
>> https://github.com/grayhemp/pgtoolkit.
>
> It's a pity that that requires several sequential scans of the tables.
> For my case, that's probably as intrusive as the exclusive locks.
Probably you should run it with --no-pgstattuple if you are talking
about these seq scans. If your tables are not TOASTed then the
approximation method of gathering statistics would work pretty good
for you.
> I noticed I didn't mention, but the tables involved are around 20-50GB in size.
It is not the thing I would worry about. I regularly use it with even
bigger tables.
--
Kind regards,
Sergey Konoplev
PostgreSQL Consultant and DBA
http://www.linkedin.com/in/grayhemp
+1 (415) 867-9984, +7 (901) 903-0499, +7 (988) 888-1979
gray.ru@gmail.com