| From: | Dave Cramer <pg(at)fastcrypt(dot)com> |
|---|---|
| To: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
| Cc: | PostgreSQL-development <pgsql-hackers(at)postgreSQL(dot)org> |
| Subject: | Re: Vacuum info clarification |
| Date: | 2004-11-11 15:59:08 |
| Message-ID: | 41938C4C.7040400@fastcrypt.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
While we are at it
An explanation of what
DETAIL: 0 dead row versions cannot be removed yet
There were 1 unused item pointers.
mean would be useful.
Dave
Bruce Momjian wrote:
>The last two lines of VACUUM VERBOSE are:
>
> INFO: free space map: 49 relations, 32 pages stored; 784 total pages needed
> DETAIL: Allocated FSM size: 1000 relations + 20000 pages = 182 kB shared memory.
>
>I think "total pages needed" should be "total pages used" or "total
>pages requested".
>
>I am confused about the difference between "stored" and "requested". I
>read the comments in freespace.c but am still confused.
>
>
>
--
Dave Cramer
http://www.postgresintl.com
519 939 0336
ICQ#14675561
| From | Date | Subject | |
|---|---|---|---|
| Next Message | gevik | 2004-11-11 16:37:41 | newbie compile question. please help |
| Previous Message | Tom Lane | 2004-11-11 15:24:34 | Re: MAX/MIN optimization via rewrite (plus query rewrites generally) |