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The tests collate.icu.utf8 and collate.linux.utf8 were previously only run when explicitly selected via EXTRA_TESTS. They require a UTF8 database, because the error messages in the expected files refer to that, and they use some non-ASCII characters in the tests. Since users can select any locale and encoding for the regression test run, it was not possible to include these tests automatically. To fix, use psql's \if facility to check various prerequisites such as platform and the server encoding and quit the tests at the very beginning if the configuration is not adequate. We then need to maintain alternative expected files for these tests, but they are very tiny and never need to change after this. These two tests are now run automatically as part of the regression tests. Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://www.postgresql.org/message-id/flat/052295c2-a2e1-9a21-bd36-8fbff8686cf3%402ndquadrant.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/.