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GetLocaleInfoEx() can fail on strings that setlocale() was perfectly happy with. A common way for that to happen is if the locale string is actually a Unix-style string, say "et_EE.UTF-8". In that case, what's after the dot is an encoding name, not a Windows codepage number; blindly treating it as a codepage number led to failure, with a fairly silly error message. Hence, check to see if what's after the dot is all digits, and if not, treat it as a literal encoding name rather than a codepage number. This will do the right thing with many Unix-style locale strings, and produce a more sensible error message otherwise. Somewhat independently of that, treat a zero (CP_ACP) result from GetLocaleInfoEx() as meaning that we must use UTF-8 encoding. Back-patch to all supported branches. Juan José Santamaría Flecha Discussion: https://postgr.es/m/24905.1585445371@sss.pgh.pa.us
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. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.