From: | Tomas Vondra <tomas(dot)vondra(at)postgresql(dot)org> |
---|---|
To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
Subject: | pgsql: Set PD_ALL_VISIBLE and visibility map bits in COPY FREEZE |
Date: | 2021-01-17 21:30:49 |
Message-ID: | E1l1FdJ-0002zh-JQ@gemulon.postgresql.org |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-committers |
Set PD_ALL_VISIBLE and visibility map bits in COPY FREEZE
Make sure COPY FREEZE marks the pages as PD_ALL_VISIBLE and updates the
visibility map. Until now we only marked individual tuples as frozen,
but page-level flags were not updated, so the first VACUUM after the
COPY FREEZE had to rewrite the whole table.
This is a fairly old patch, and multiple people worked on it. The first
version was written by Jeff Janes, and then reworked by Pavan Deolasee
and Anastasia Lubennikova.
Author: Anastasia Lubennikova, Pavan Deolasee, Jeff Janes
Reviewed-by: Kuntal Ghosh, Jeff Janes, Tomas Vondra, Masahiko Sawada,
Andres Freund, Ibrar Ahmed, Robert Haas, Tatsuro Ishii,
Darafei Praliaskouski
Discussion: https://postgr.es/m/CABOikdN-ptGv0mZntrK2Q8OtfUuAjqaYMGmkdU1dCKFtUxVLrg@mail.gmail.com
Discussion: https://postgr.es/m/CAMkU%3D1w3osJJ2FneELhhNRLxfZitDgp9FPHee08NT2FQFmz_pQ%40mail.gmail.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/7db0cd2145f2bce84cac92402e205e4d2b045bf2
Modified Files
--------------
contrib/pg_visibility/expected/pg_visibility.out | 64 ++++++++++++++++++++
contrib/pg_visibility/sql/pg_visibility.sql | 77 ++++++++++++++++++++++++
src/backend/access/heap/heapam.c | 77 +++++++++++++++++++++---
src/backend/access/heap/hio.c | 17 ++++++
src/include/access/heapam_xlog.h | 3 +
5 files changed, 230 insertions(+), 8 deletions(-)
From | Date | Subject | |
---|---|---|---|
Next Message | Heikki Linnakangas | 2021-01-17 22:47:32 | pgsql: pageinspect: Fix relcache leak in gist_page_items(). |
Previous Message | Tom Lane | 2021-01-17 17:53:55 | pgsql: Add missing array-enlargement logic to test_regex.c. |