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Michael Paquier 1c05fe11ab Fix version number calculation for data folder flush in pg_combinebackup 
The version number calculated by read_pg_version_file() is multiplied
once by 10000, to be able to do comparisons based on PG_VERSION_NUM or
equivalents with a minor version included.  However, the version number
given sync_pgdata() was multiplied by 10000 a second time, leading to an
overestimated number.

This issue was harmless (still incorrect) as pg_combinebackup does not
support versions of Postgres older than v10, and sync_pgdata() only
includes a version check due to the rename of pg_xlog/ to pg_wal/.  This
folder rename happened in the development cycle of v10.  This would
become a problem if in the future  sync_pgdata() is changed to have more
version-specific checks.

Oversight in dc21234005, so backpatch down to v17.

Reviewed-by: Chao Li <li.evan.chao@gmail.com>
Discussion: https://postgr.es/m/aOil5d0y87ZM_wsZ@paquier.xyz
Backpatch-through: 17
2025-10-14 08:30:54 +09:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config Remove traces of support for Sun Studio compiler 2025-09-12 07:39:05 +02:00
contrib Add mem_exceeded_count column to pg_stat_replication_slots. 2025-10-08 10:05:04 -07:00
doc Doc: clarify n_distinct_inherited setting 2025-10-14 09:25:02 +13:00
src Fix version number calculation for data folder flush in pg_combinebackup 2025-10-14 08:30:54 +09:00
.cirrus.star ci: Simplify ci-os-only handling 2025-08-14 12:09:34 -04:00
.cirrus.tasks.yml Revert "Improve docs syntax checking" 2025-10-06 07:53:31 -04:00
.cirrus.yml ci: Per-repo configuration for manually trigger tasks 2025-08-14 11:54:03 -04:00
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aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
configure Remove traces of support for Sun Studio compiler 2025-09-12 07:39:05 +02:00
configure.ac Remove traces of support for Sun Studio compiler 2025-09-12 07:39:05 +02:00
COPYRIGHT Align organization wording in copyright statement 2025-05-16 11:20:07 -04:00
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Makefile Remove AIX support 2024-02-28 15:17:23 +04:00
meson.build Fix meson build with -Duuid=ossp when using version older than 0.60 2025-09-22 08:03:23 +09:00
meson_options.txt Add support for basic NUMA awareness 2025-04-07 23:08:17 +02:00
README.md Revise the style of a paragraph in README.md. 2024-03-21 10:16:41 -05:00

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/.