372b8d1adb
This reverts commitef38a4d975which implemented the GROUP BY ALL syntax, as well as2ce745836which made some comment improvements therein. A postcommit review discovered that GROUP BY ALL missed our special handling of entries that also appear in an ORDER BY in the query. This caused the query to return wrong results when ORDER BY specifies non-default equality semantics. While this should be fixable with some refactoring, doing it cleanly seems like too much code churn for late beta. We'll revert and try again in v20. The reverted commit also included some additional comment wordsmithing and docs cleanup, which are retained as they weren't connected to the reverted feature. catversion bump needed due to change in struct Query. Reported-by: Chao Li <li.evan.chao@gmail.com> Author: Daniel Gustafsson <daniel@yesql.se> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://postgr.es/m/5243308F-8E5C-45AA-828C-FAD96C4F34DA@gmail.com Backpatch-through: 19
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.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/19/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/19/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.