Re: PostgreSQL win32 fragmentation issue - Mailing list pgsql-hackers

From Gurjeet Singh
Subject Re: PostgreSQL win32 fragmentation issue
Date
Msg-id 65937bea0612030103n76b755bv2bd219e9c7aac7f4@mail.gmail.com
Whole thread Raw
In response to Re: PostgreSQL win32 fragmentation issue  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
On 12/3/06, Tom Lane <tgl@sss.pgh.pa.us> wrote:
Mark Kirkwood <markir@paradise.net.nz> writes:
> A related point comes to mind, consider the single "tablespace" file for
> example: It may have no fragmentation from a *file* perspective, but
> supposing you have several busy relations being inserted or updated then
> pages (or groups of pages) for these could be "fragmented" throughout
> the tablespace file.

+1 ... what was said upthread sounds to me like those other databases
are just hiding the fragmentation issue within their
huge-files-you-can't-see-into.  I would very much like to see some proof
of performance problems before we worry about this.


Does this raise the need for an in-postgres de-fragmenter?

--
gurjeet[.singh]@EnterpriseDB.com
singh.gurjeet@{ gmail | hotmail | yahoo }.com
GTODO

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