c58566d06f
Those changes were intended to avoid dependencies on the global libc locale settings by basing identifier casefolding on the default locale. They introduced an unintentional behavior difference for the builtin provider with locale C and a single-byte encoding. Instead of fixing that edge case, just revert the changes. The identifier casefolding behavior has always been based on the global libc locale, and clients make an effort to use the same rules. Until we have a plan to change that, provider-specific identifier casefolding doesn't make sense. Reported-by: Noah Misch <noah@leadboat.com> Discussion: https://postgr.es/m/20260826225510.10.noahmisch@microsoft.com Backpatch-through: 19
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/19/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/19/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/.