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David Rowley 331d829e62 Fix nocachegetattr() so it again supports deforming cstrings 
c456e3911 added various optimizations to the tuple deformation routines.
One optimization assumed that heap tuples would never contain cstrings.
That optimization also made its way into nocachegetattr(), which isn't
correct as ROW() types get formed into HeapTuples by ExecEvalRow() and
those can contain cstring Datums.  nocachegetattr() gets used to extract
Datums from those tuples.

Here we remove the pg_assume(), which was there to instruct the compiler
to omit the attlen == -2 related code in att_addlength_pointer().

Author: David Rowley <dgrowleyml@gmail.com>
Reported-by: Alexander Lakhin <exclusion@gmail.com>
Discussion: https://postgr.es/m/80aeac57-8f50-4732-a5b4-c2373c3f8149@gmail.com
2026-04-02 14:11:17 +13:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config Hardcode override of typeof_unqual for clang-for-bitcode 2026-03-16 19:24:49 +01:00
contrib Add UPDATE/DELETE FOR PORTION OF 2026-04-01 19:06:03 +02:00
doc Add UPDATE/DELETE FOR PORTION OF 2026-04-01 19:06:03 +02:00
src Fix nocachegetattr() so it again supports deforming cstrings 2026-04-02 14:11:17 +13:00
.cirrus.star ci: Simplify ci-os-only handling 2025-08-14 12:09:34 -04:00
.cirrus.tasks.yml Enable test_cplusplusext with MSVC 2026-04-01 07:48:47 +02:00
.cirrus.yml ci: Per-repo configuration for manually trigger tasks 2025-08-14 11:54:03 -04:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Update .editorconfig and .gitattributes for postgresql.conf.sample. 2025-11-18 10:28:36 -06:00
.git-blame-ignore-revs Add commit 874da8b1f6 to .git-blame-ignore-revs. 2026-03-30 14:35:24 -05:00
.gitattributes Update .editorconfig and .gitattributes for postgresql.conf.sample. 2025-11-18 10:28:36 -06:00
.gitignore Update top-level .gitignore. 2022-12-04 15:23:00 -05:00
.mailmap Add a Git .mailmap file 2024-11-05 13:56:02 +01:00
aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
configure Add warning option -Wold-style-declaration 2026-03-30 23:34:13 +02:00
configure.ac Add warning option -Wold-style-declaration 2026-03-30 23:34:13 +02:00
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 Restore AIX support. 2026-02-23 13:34:22 -05:00
meson.build Enable test_cplusplusext with MSVC 2026-04-01 07:48:47 +02:00
meson_options.txt Update copyright for 2026 2026-01-01 13:24:10 -05:00
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/.