bfa58a679a
There was a excessive structure, leading to somewhat disorganized presentation of the information. Remove a few tags and reorder paragraphs to make the text flow more easily. Also, reword some of it to be more concise. The bit about column list combination is not modified, other than to remove an uninteresting (and IMO confusing and wrong) paragraph; I intend to deal with it differently afterwards. Backpatch to 15. Discussion: https://postgr.es/m/20220913121138.yn7ekkfysxzhkm2u@alvherre.pgsql
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/.