| From: | Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at> |
|---|---|
| To: | Bertrand Drouvot <bertranddrouvot(dot)pg(at)gmail(dot)com>, Frédéric Yhuel <frederic(dot)yhuel(at)dalibo(dot)com> |
| Cc: | PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Benoit Lobréau <benoit(dot)lobreau(at)dalibo(dot)com> |
| Subject: | Re: doc: explain pgstatindex fragmentation |
| Date: | 2025-01-24 13:58:07 |
| Message-ID: | 7acd31d053e5752de94f264dbc0cecf689662cbd.camel@cybertec.at |
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| Lists: | pgsql-hackers |
On Fri, 2025-01-24 at 13:34 +0000, Bertrand Drouvot wrote:
> + Since indexes have a default fillfactor of 90, this should be around 0.9 for
> + newly built indexes
>
> I think 0.9 should be replaced by 90 (that's the actual kind of output we'd get).
>
> But having said that, I'm not sure we should mention those 90 stuff because it
> depends of the amount of data indexed (I mean if the index has a very few
> leaf pages, say < 5, then it's easy to be << 90 since it's an average). That's
> probably not the majority of indexes though so maybe just nuance the sentence a
> bit.
Sorry about the 0.9.
Perhaps the wording could be more careful: ... this should be around 90 for
most newly built indexes of non-neglectable size.
Yours,
Laurenz Albe
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