5334620eef
Mappings for 18 characters have changed, affecting 36 code points. This is a break in compatibility, but these characters are rarely used. U+E5E5 (Private Use Area) was previously mapped to \xA3A0. This code point now maps to \x65356535. Attempting to convert \xA3A0 will now raise an error. Separate from the 2022 update, the following mappings were previously swapped, and subsequently corrected in 2000 and later versions: * U+E7C7 (Private Use Area) now maps to \x8135F437 * U+1E3F (Latin Small Letter M with Acute) now maps to \xA8BC The 2022 standard mentions the following policy changes, but they have no effect in our implementation: 66 new ideographs are now required, but these are mapped algorithmically so were already handled by utf8_and_gb18030.c. Nine CJK compatibility ideographs are no longer required, but implementations may retain them, as does the source we use from the Unicode Consortium. Release notes: Compatibility section For further details, see: https://www.unicode.org/L2/L2022/22274-disruptive-changes.pdf https://ken-lunde.medium.com/the-gb-18030-2022-standard-3d0ebaeb4132 Author: Chao Li <lic@highgo.com> Author: Zheng Tao <taoz@highgo.com> Discussion: https://postgr.es/m/966d9fc.169.198741fe60b.Coremail.jiaoshuntian%40highgo.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/.