| From: | Nathan Bossart <nathandbossart(at)gmail(dot)com> |
|---|---|
| To: | Corey Huinker <corey(dot)huinker(at)gmail(dot)com> |
| Cc: | Andres Freund <andres(at)anarazel(dot)de>, Jeff Davis <pgsql(at)j-davis(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Michael Paquier <michael(at)paquier(dot)xyz>, jian he <jian(dot)universality(at)gmail(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Matthias van de Meent <boekewurm+postgres(at)gmail(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, Stephen Frost <sfrost(at)snowman(dot)net>, Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>, Peter Smith <smithpb2250(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, alvherre(at)alvh(dot)no-ip(dot)org |
| Subject: | Re: Statistics Import and Export |
| Date: | 2025-03-06 02:19:36 |
| Message-ID: | Z8kGOKkh63iKLe4R@nathan |
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| Lists: | pgsql-hackers |
On Wed, Mar 05, 2025 at 08:54:35PM -0500, Corey Huinker wrote:
> * The stats data is kinda heavy (most common value lists, most common
> elements lists, esp for high stattargets), which would be a considerable
> memory impact and some of those stats might not even be needed (example,
> index stats for a table that is filtered out)
Understood. Looking closer, I can see why that's a concern in this case.
You'd need 128 bytes just for the schema and table name.
--
nathan
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