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The invocation of pg_regress in 027_stream_regress.pl didn't specify the host. It ends up working on most systems because of connection defaults. However, on windows it makes the test very slow unless PG_TEST_USE_UNIX_SOCKETS is used. The problem is that windows resolves "localhost" to ::0, 127.0.0.1, the server started only listens on 127.0.0.1. On windows refused TCP connections are internally retried a few times, with back-off between tries, taking at least 2 seconds. Noticed while investigating a complaint about the test's slow speed by Andrew Dunstan. Discussion: https://postgr.es/m/20220127220351.kyp3bdaukfytmoqx@alap3.anarazel.de
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/.