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Tom Lane 78d5952dd0 Ensure result of an aggregate's finalfunc is made read-only. 
The finalfunc might return a read-write expanded object.  If we
de-duplicate multiple call sites for the aggregate, any function(s)
receiving the aggregate result earlier could alter or destroy the
value that reaches the ones called later.  This is a brown-paper-bag
bug in commit 42b746d4c, because we actually considered the need
for read-only-ness but failed to realize that it applied to the case
with a finalfunc as well as the case without.

Per report from Justin Pryzby.  New error in HEAD,
no need for back-patch.

Discussion: https://postgr.es/m/ZDm5TuKsh3tzoEjz@telsasoft.com
2023-04-16 14:16:40 -04:00
config Update config.guess and config.sub 2023-04-12 09:16:19 +02:00
contrib Avoid using non-ASCII commentary in daitch_mokotoff.c. 2023-04-16 12:57:32 -04:00
doc Doc: add note about --buffer-usage-limit being v16 onwards 2023-04-16 21:47:01 +12:00
src Ensure result of an aggregate's finalfunc is made read-only. 2023-04-16 14:16:40 -04:00
.cirrus.yml Allow to use system CA pool for certificate verification 2023-04-05 23:22:17 +02:00
.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 b6dfee28 to .git-blame-ignore-revs 2023-03-09 19:26:03 +09:00
.gitattributes gitattributes: Ignore imported pg_bsd_indent code for whitespace checks 2023-02-22 09:00:28 +01:00
.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 Explicitly require MIT Kerberos for GSSAPI 2023-04-13 08:55:13 -04:00
configure.ac Explicitly require MIT Kerberos for GSSAPI 2023-04-13 08:55:13 -04:00
COPYRIGHT Update copyright for 2023 2023-01-02 15:00:37 -05:00
GNUmakefile.in Integrate pg_bsd_indent into our build/test infrastructure. 2023-02-12 12:22:21 -05:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Dynamically find correct installation docs in Makefile. 2022-01-19 14:48:25 +01:00
meson.build Explicitly require MIT Kerberos for GSSAPI 2023-04-13 08:55:13 -04:00
meson_options.txt meson: docs: Allow configuring simple/website style 2023-04-04 21:31:27 -07:00
README Canonicalize some URLs 2020-02-10 20:47:50 +01:00
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/.