| From: | Jeff Davis <pgsql(at)j-davis(dot)com> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de>, Corey Huinker <corey(dot)huinker(at)gmail(dot)com> |
| Cc: | 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>, Nathan Bossart <nathandbossart(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: | 2025-02-26 02:00:12 |
| Message-ID: | 6af48508a32499a8be3398cafffd29fb6188c44b.camel@j-davis.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Mon, 2025-02-24 at 09:54 -0500, Andres Freund wrote:
> Have you compared performance of with/without stats after these
> optimizations?
On unoptimized build with asserts enabled, dumping the regression
database:
--no-statistics: 1.0s
master: 3.6s
v3j-0001: 3.0s
v3j-0002: 1.7s
I plan to commit the patches soon.
Regards,
Jeff Davis
| Attachment | Content-Type | Size |
|---|---|---|
| v3j-0001-Avoid-unnecessary-relation-stats-query-in-pg_dum.patch | text/x-patch | 11.6 KB |
| v3j-0002-pg_dump-prepare-attribute-stats-query.patch | text/x-patch | 7.7 KB |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Sutou Kouhei | 2025-02-26 02:08:26 | Re: Make COPY format extendable: Extract COPY TO format implementations |
| Previous Message | Masahiko Sawada | 2025-02-26 01:14:43 | Re: Make COPY format extendable: Extract COPY TO format implementations |