810a8b1c80
This reverts commit38da053463, which attempted to preserve our ability to start with only 60 semaphores. Subsequent changes (particularly55b454d0e) have put that idea pretty much permanently out of reach: people wishing to use Postgres v18 on OpenBSD or NetBSD will have no choice but to increase those platforms' default values of SEMMNI and SEMMNS. Hence, revert 38da05346's changes in SEMAS_PER_SET and the minimum tested value of max_connections. Adjust a comment from the subsequent patch6d0154196, and tweak the wording in runtime.sgml to make it clear that changing SEMMNI/SEMMNS is no longer even a little bit optional on these platforms. Although38da05346was later back-patched into v17, leave that branch alone: it's still capable of starting with 60 semaphores, and there's no reason to break that. Author: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Nathan Bossart <nathandbossart@gmail.com> Discussion: https://postgr.es/m/E1tuZNv-0037Gs-34@gemulon.postgresql.org Discussion: https://postgr.es/m/1052019.1745947915@sss.pgh.pa.us
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/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/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/.