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Nathan Bossart 97287bdfae Move is_valid_ascii() to ascii.h.
This function requires simd.h, which is a rather large dependency
for a widely-used header file like pg_wchar.h.  Furthermore, there
is a report of a third-party tool that is struggling to use
pg_wchar.h due to its dependence on simd.h (presumably because
simd.h uses several intrinsics).  Moving the function to the much
less popular ascii.h resolves these issues for now.

This commit is back-patched for the benefit of the aforementioned
third-party tool.  The simd.h dependency was only added in v16,
but we've opted to back-patch to v15 so that is_valid_ascii() lives
in the same file for all versions where it exists.  This could
break existing third-party code that uses the function, but we
couldn't find any examples of such code.  It should be possible to
fix any code that this commit breaks by including ascii.h in the
file that uses is_valid_ascii().

Author: Jubilee Young
Reviewed-by: Tom Lane, John Naylor, Andres Freund, Eric Ridge
Discussion: https://postgr.es/m/CAPNHn3oKJJxMsYq%2BqLYzVJOFrUcOr4OF1EC-KtFT-qh8nOOOtQ%40mail.gmail.com
Backpatch-through: 15
2024-01-29 12:08:57 -06:00
config jit: Require at least LLVM 10. 2024-01-25 15:42:34 +13:00
contrib Fix incompatibilities with libxml2 >= 2.12.0. 2024-01-29 12:06:13 -05:00
doc Add EXPLAIN (MEMORY) to report planner memory consumption 2024-01-29 17:53:03 +01:00
src Move is_valid_ascii() to ascii.h. 2024-01-29 12:08:57 -06:00
.cirrus.star Remove duplicate words in docs and code comments. 2023-10-09 09:18:47 +05:30
.cirrus.tasks.yml ci: Enable injection points in builds 2024-01-23 12:01:18 +09:00
.cirrus.yml ci: Make compute resources for CI configurable 2023-08-23 15:15:28 -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 Add previous commit to .git-blame-ignore-revs. 2024-01-13 13:56:46 -05:00
.gitattributes Replace Gen_dummy_probes.sed with Gen_dummy_probes.pl 2023-11-14 10:27:10 +01:00
.gitignore Update top-level .gitignore. 2022-12-04 15:23:00 -05:00
COPYRIGHT Update copyright for 2024 2024-01-03 20:49:05 -05:00
GNUmakefile.in Stop generating plain-text INSTALL instructions. 2023-12-22 13:32:15 -05:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Stop generating plain-text INSTALL instructions. 2023-12-22 13:32:15 -05:00
README Stop generating plain-text INSTALL instructions. 2023-12-22 13:32:15 -05:00
aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
configure jit: Require at least LLVM 10. 2024-01-25 15:42:34 +13:00
configure.ac Add backend support for injection points 2024-01-22 10:15:50 +09:00
meson.build jit: Require at least LLVM 10. 2024-01-25 15:42:34 +13:00
meson_options.txt Add backend support for injection points 2024-01-22 10:15:50 +09:00

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.

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/.