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load_libraries(), which processes the various xxx_preload_libraries GUCs, was parsing them using SplitIdentifierString() which isn't really appropriate for values that could be path names: it downcases unquoted text, and it doesn't allow embedded whitespace unless quoted. Use SplitDirectoriesString() instead. That also allows us to simplify load_libraries() a bit, since canonicalize_path() is now done for it. While this definitely seems like a bug fix, it has the potential to break configuration settings that accidentally worked before because of the downcasing behavior. Also, there's an easy workaround for the bug, namely to double-quote troublesome text. Hence, no back-patch. QL Zhuo, tweaked a bit by me Discussion: https://postgr.es/m/CAB-oJtxHVDc3H+Km3CjB9mY1VDzuyaVH_ZYSz7iXcRqCtb93Ew@mail.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. 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/.