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Heikki Linnakangas af0e7deb4a Don't destroy SMgrRelations at relcache invalidation 
With commit 21d9c3ee4e, SMgrRelations remain valid until end of
transaction (or longer if they're "pinned"). Relcache invalidation can
happen in the middle of a transaction, so we must not destroy them at
relcache invalidation anymore.

This was revealed by failures in the 'constraints' test in buildfarm
animals using -DCLOBBER_CACHE_ALWAYS. That started failing with commit
8af2565248, which was the first commit that started to rely on an
SMgrRelation living until end of transaction.

Diagnosed-by: Tomas Vondra, Thomas Munro
Reviewed-by: Thomas Munro
Discussion: https://www.postgresql.org/message-id/CA%2BhUKGK%2B5DOmLaBp3Z7C4S-Yv6yoROvr1UncjH2S1ZbPT8D%2BZg%40mail.gmail.com
2024-03-11 09:08:02 +02:00
config Remove AIX support 2024-02-28 15:17:23 +04:00
contrib Fix deparsing of Consts in postgres_fdw ORDER BY 2024-03-11 12:27:11 +13:00
doc Doc: Warn about two_phase when altering a subscription's slot name. 2024-03-11 09:33:04 +05:30
src Don't destroy SMgrRelations at relcache invalidation 2024-03-11 09:08:02 +02:00
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.cirrus.tasks.yml ci: Add test coverage of different pg_upgrade modes 2024-02-19 09:31:23 +01:00
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README.md

PostgreSQL Database Management System

This directory contains the source code distribution of the PostgreSQL database management system.

PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.

Copyright and license information can be found in the file COPYRIGHT.

General documentation about this version of PostgreSQL can be found at: https://www.postgresql.org/docs/devel/
In particular, information about building PostgreSQL from the source code can be found at: https://www.postgresql.org/docs/devel/installation.html

The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.