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When setting PG_COLOR to "always" or "auto" in a Windows terminal VT100-compatible, the colorization output was not showing up correctly because it is necessary to update the console's output handling mode. This fix allows to detect automatically if the environment is compatible with VT100. Hence, PG_COLOR=auto is able to detect and handle both compatible and non-compatible environments. The behavior of PG_COLOR=always remains unchanged, as it enforces the use of colorized output even if the environment does not allow it. This fix is based on an initial suggestion from Thomas Munro. Reported-by: Haiying Tang Author: Juan José Santamaría Flecha Reviewed-by: Michail Nikolaev, Michael Paquier, Haiying Tang Discussion: https://postgr.es/m/16108-134692e97146b7bc@postgresql.org Backpatch-through: 12
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/.