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Tom Lane 6cddecdfb0 Avoid breaking SJIS encoding while de-backslashing Windows paths.
When running on Windows, canonicalize_path() converts '\' to '/'
to prevent confusing the Windows command processor.  It was
doing that in a non-encoding-aware fashion; but in SJIS there
are valid two-byte characters whose second byte matches '\'.
So encoding corruption ensues if such a character is used in
the path.

We can fairly easily fix this if we know which encoding is
in use, but a lot of our utilities don't have much of a clue
about that.  After some discussion we decided we'd settle for
fixing this only in psql, and assuming that its value of
client_encoding matches what the user is typing.

It seems hopeless to get the server to deal with the problematic
characters in database path names, so we'll just declare that
case to be unsupported.  That means nothing need be done in
the server, nor in utility programs whose only contact with
file path names is for database paths.  But psql frequently
deals with client-side file paths, so it'd be good if it
didn't mess those up.

Bug: #18735
Reported-by: Koichi Suzuki <koichi.suzuki@enterprisedb.com>
Author: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Koichi Suzuki <koichi.suzuki@enterprisedb.com>
Discussion: https://postgr.es/m/18735-4acdb3998bb9f2b1@postgresql.org
Backpatch-through: 13
2025-01-29 14:24:36 -05:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config Remove flex version checks 2025-01-17 09:30:42 +01:00
contrib Fix grammatical typos around possessive "its" 2025-01-29 14:39:14 +07:00
doc Rename pubgencols_type to pubgencols in pg_publication. 2025-01-28 10:42:46 +05:30
src Avoid breaking SJIS encoding while de-backslashing Windows paths. 2025-01-29 14:24:36 -05:00
.cirrus.star Remove duplicate words in docs and code comments. 2023-10-09 09:18:47 +05:30
.cirrus.tasks.yml ci: Fix cached MacPorts installation management 2024-11-27 11:51:54 -05:00
.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
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.git-blame-ignore-revs Add commit 6e826278f1 to .git-blame-ignore-revs. 2025-01-13 09:37:32 -06:00
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aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
configure Remove flex version checks 2025-01-17 09:30:42 +01:00
configure.ac Update copyright for 2025 2025-01-01 11:21:55 -05:00
COPYRIGHT Update copyright for 2025 2025-01-01 11:21:55 -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
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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/.