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Michael Paquier 8ad4148313 Fix memory leak in pgstat_progress_parallel_incr_param() 
When called from a parallel worker, this function calls initStringInfo()
and pq_beginmessage(), causing a StringInfo allocation to happen twice.
pq_endmessage() frees only the second allocation, with each call leaking
~1 kB into the per-worker memory context.  This could cause a few
hundred megabytes worth of memory to pile up until the worker exits (the
message allocations happen in the parallel worker context), with the
situation being worse the longer a parallel worker runs.

Oversight in f1889729dd.

Author: Baji Shaik <baji.pgdev@gmail.com>
Reviewed-by: Sami Imseih <samimseih@gmail.com>
Reviewed-by: Tristan Partin <tristan@partin.io>
Discussion: https://postgr.es/m/CA+fm-RMopta1Dmq8udiU5sp+zwTvhUf4+xfbr3rZDfczH+p-xw@mail.gmail.com
Backpatch-through: 17
2026-06-08 15:29:21 +09:00
config Allow PG_PRINTF_ATTRIBUTE to be different in C and C++ code. 2026-02-25 11:57:26 -05:00
contrib pg_surgery: Fix off-by-one bug with heap offset 2026-06-06 08:16:41 +09:00
doc pg_recvlogical: Honor source cluster file permissions for output files 2026-05-20 15:57:04 +09:00
src Fix memory leak in pgstat_progress_parallel_incr_param() 2026-06-08 15:29:21 +09:00
.abi-compliance-history Update .abi-compliance-history for change to enum ProcSignalReason 2026-04-16 23:48:41 +09:00
.cirrus.star ci: Simplify ci-os-only handling 2025-08-14 12:02:42 -04:00
.cirrus.tasks.yml Make stack depth check work with asan's use-after-return 2026-05-28 11:34:12 -04:00
.cirrus.yml ci: Per-repo configuration for manually trigger tasks 2025-08-14 11:33:47 -04:00
.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 Add previous commit to .git-blame-ignore-revs. 2025-10-21 10:02:19 -05:00
.gitattributes Fix git whitespace warning 2025-08-15 10:32:07 +02:00
.gitignore Update top-level .gitignore. 2022-12-04 15:23:00 -05:00
aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
configure Stamp 17.10. 2026-05-11 15:46:41 -04:00
configure.ac Stamp 17.10. 2026-05-11 15:46:41 -04:00
COPYRIGHT Update copyright for 2026 2026-01-01 13:24:10 -05:00
GNUmakefile.in Allow selecting the git revision to be packaged by "make dist". 2024-05-03 11:08:50 -04:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Adapt REL_17_STABLE to its new status as a stable branch 2024-07-01 08:05:35 +09:00
meson.build Stamp 17.10. 2026-05-11 15:46:41 -04:00
meson_options.txt Allow selecting the git revision to be packaged by "make dist". 2024-05-03 11:08:50 -04:00
README.md Adapt REL_17_STABLE to its new status as a stable branch 2024-07-01 08:05:35 +09:00

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/17/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/17/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/.