| From: | Nathan Bossart <nathandbossart(at)gmail(dot)com> |
|---|---|
| To: | wenhui qiu <qiuwenhuifx(at)gmail(dot)com> |
| Cc: | Melanie Plageman <melanieplageman(at)gmail(dot)com>, Robert Treat <rob(at)xzilla(dot)net>, Greg Sabino Mullane <htamfids(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>, Andres Freund <andres(at)anarazel(dot)de>, Peter Geoghegan <pg(at)bowt(dot)ie>, David Rowley <dgrowley(at)gmail(dot)com>, Corey Huinker <corey(dot)huinker(at)gmail(dot)com> |
| Subject: | Re: Trigger more frequent autovacuums of heavy insert tables |
| Date: | 2025-03-01 17:50:56 |
| Message-ID: | Z8NJAN3JkXqs_AjL@nathan |
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| Lists: | pgsql-hackers |
On Sat, Mar 01, 2025 at 08:57:52AM +0800, wenhui qiu wrote:
> Based on the comments, the pcnt_unfrozen value could potentially be 0,
> which would indicate that everything is frozen. Therefore, is it necessary
> to handle the case where the value is 0.？
How so? If it's 0, then the insert threshold calculation would produce
autovacuum_vacuum_insert_threshold, just like for an empty table. That
seems like the intended behavior to me.
--
nathan
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