77645d44e3
This was useful before widespread Unicode adoption, and was based on the internal encoding Emacs used to mix multiple sub-encodings. Emacs itself has stopped using it, and our implementation hadn't been updated with modern underlying standards. It is thought to be very unlikely that anyone is still using it in the field. Since such a complex encoding comes with costs and risks, we agreed to drop support. Any existing database using this encoding would need to be dumped and restored with a new encoding to upgrade to PostgreSQL 19, most likely UTF8, since pg_upgrade would fail. Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Tatsuo Ishii <ishii@postgresql.org> Reviewed-by: Jeff Davis <pgsql@j-davis.com> Discussion: https://postgr.es/m/CA%2BhUKGKXDXh-FdU0orjfv%2BF08f%3DD91BhV3Ra-4zL-q%2BJmGYqTA%40mail.gmail.com
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/.