| From: | Peter Geoghegan <pg(at)bowt(dot)ie> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Jeff Davis <pgsql(at)j-davis(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Decoupling antiwraparound autovacuum from special rules around auto cancellation |
| Date: | 2023-01-18 21:45:19 |
| Message-ID: | CAH2-WzkF0NnRjf3f4+WK5EEwWNvPOFSShO3C2y3NBKGsS9mbyg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, Jan 18, 2023 at 1:08 PM Andres Freund <andres(at)anarazel(dot)de> wrote:
> I suggested nearby to only have ANALYZE dead_tuples it if there's been no
> [auto]vacuum since the stats entry was created. That allows recovering from
> stats resets, be it via crashes or explicitly. What do you think?
I like that idea. It's far simpler than the kind of stuff I was
thinking about, and probably just as effective. Even if it introduces
some unforeseen problem (which seems unlikely), we can still rely on
pgstat_report_vacuum() to set things straight before too long.
Are you planning on writing a patch for this? I'd be very interested
in seeing this through. Could definitely review it.
--
Peter Geoghegan
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