| From: | Corey Huinker <corey(dot)huinker(at)gmail(dot)com> |
|---|---|
| To: | Jeff Davis <pgsql(at)j-davis(dot)com> |
| Cc: | Bruce Momjian <bruce(at)momjian(dot)us>, jian he <jian(dot)universality(at)gmail(dot)com>, Matthias van de Meent <boekewurm+postgres(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Nathan Bossart <nathandbossart(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: | 2024-12-20 06:00:55 |
| Message-ID: | CADkLM=dL2B0jzdL8VrqjvQX21KBCaD65pHvQSBEvidPdNM2A-w@mail.gmail.com |
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| Lists: | pgsql-hackers |
>
> The biggest functional change is the way dependencies are handled for
> matview stats. Materialized views ordinarily end up in
> SECITON_PRE_DATA, but in some cases they can be postponed to
> SECTION_POST_DATA. You solved that by always putting the matview stats
> in SECTION_POST_DATA.
>
Accurate.
> I took a different approach here and, when the matview is postponed,
> also postpone the matview stats. It's slightly more code, but it felt
> closer to the rest of the structure, where postponing is a special case
> (that we might be able to remove in the future).
+1. The fact that this quirk was a knock-on effect of the postponing-quirk,
which could go away, makes this change compelling.
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