| From: | "Matthew T(dot) O'Connor" <matthew(at)zeut(dot)net> |
|---|---|
| To: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
| Cc: | Russell Smith <mr-russ(at)pws(dot)com(dot)au>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Auto Vacuum |
| Date: | 2004-11-30 03:14:10 |
| Message-ID: | 41ABE582.4030502@zeut.net |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Bruce Momjian wrote:
>Matthew T. O'Connor wrote:
>
>
>>Bruce Momjian wrote:
>>
>>
>>>I have added an auto-vacuum TODO item:
>>>
>>>* Auto-vacuum
>>> o Move into the backend code
>>> o Scan the buffer cache to find free space or use background writer
>>> o Use free-space map information to guide refilling
>>>
>>>
>>I'm not sure what you mean exactly by "Scan the buffer cache to find
>>free space or use background writer", the other two are definitely high
>>priority todo items (at least as far as autovacuum in concerned).
>>
>>
>
>I am thinking we could look for expired tuples when while they are in
>the buffer cache or before they are written to disk so we don't have to
>a sequential scan to find them.
>
>
Is that related to autovacuum? Or is that a potential feature inside the
actual vacuum command?
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Bruce Momjian | 2004-11-30 03:21:58 | Re: Auto Vacuum |
| Previous Message | Jim Seymour | 2004-11-30 03:13:43 | Re: Opinions on Usenet ... |