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Noah Misch 431e05181e WAL-log inplace update before revealing it to other sessions. 
A buffer lock won't stop a reader having already checked tuple
visibility.  If a vac_update_datfrozenid() and then a crash happened
during inplace update of a relfrozenxid value, datfrozenxid could
overtake relfrozenxid.  That could lead to "could not access status of
transaction" errors.  Back-patch to v12 (all supported versions).  In
v14 and earlier, this also back-patches the assertion removal from
commit 7fcf2faf9c.

Discussion: https://postgr.es/m/20240620012908.92.nmisch@google.com
2024-10-25 06:51:07 -07:00
config Log LLVM library version in configure output. 2023-10-22 14:24:04 +13:00
contrib Stabilize the test added by commit 022564f60c. 2024-10-08 11:45:58 +05:30
doc Note that index_name in ALTER INDEX ATTACH PARTITION can be schema-qualified 2024-10-20 15:36:20 +02:00
src WAL-log inplace update before revealing it to other sessions. 2024-10-25 06:51:07 -07:00
.cirrus.star ci: Prepare to make compute resources for CI configurable 2023-08-23 15:15:29 -07:00
.cirrus.tasks.yml ci: Pin MacPorts version to 2.9.3. 2024-07-25 14:49:19 +12:00
.cirrus.yml ci: Make compute resources for CI configurable 2023-08-23 15:15:29 -07:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Add .editorconfig 2019-12-18 09:13:13 +01:00
.git-blame-ignore-revs Backpatch addition of .git-blame-ignore-revs 2022-08-05 19:36:24 +02:00
.gitattributes Remove non-existing file from .gitattributes 2024-02-16 11:40:57 +01:00
.gitignore Add portlock directory to .gitignore 2022-11-26 07:47:01 -05:00
aclocal.m4 Probe $PROVE not $PERL while checking for modules needed by TAP tests. 2021-11-22 12:54:52 -05:00
configure Stamp 15.8. 2024-08-05 16:07:10 -04:00
configure.ac Stamp 15.8. 2024-08-05 16:07:10 -04:00
COPYRIGHT Update copyright for 2024 2024-01-03 20:49:04 -05:00
GNUmakefile.in Remove temporary portlock directory during make [dist]clean. 2022-11-26 10:30:46 -05:00
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README.git Canonicalize some URLs 2020-02-10 20:47:50 +01:00

README 

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.

PostgreSQL has many language interfaces, many of which are listed here:

	https://www.postgresql.org/download/

See the file INSTALL for instructions on how to build and install
PostgreSQL.  That file also lists supported operating systems and
hardware platforms and contains information regarding any other
software packages that are required to build or run the PostgreSQL
system.  Copyright and license information can be found in the
file COPYRIGHT.  A comprehensive documentation set is included in this
distribution; it can be read as described in the installation
instructions.

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