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Robert Haas d8cd0c6c95 Remove the restriction that the relmap must be 512 bytes. 
Instead of relying on the ability to atomically overwrite the
entire relmap file in one shot, write a new one and durably
rename it into place. Removing the struct padding and the
calculation showing why the map is exactly 512 bytes, and change
the maximum number of entries to a nearby round number.

Patch by me, reviewed by Andres Freund and Dilip Kumar.

Discussion: http://postgr.es/m/CA+TgmoZq5%3DLWDK7kHaUbmWXxcaTuw_QwafgG9dr-BaPym_U8WQ%40mail.gmail.com
Discussion: http://postgr.es/m/CAFiTN-ttOXLX75k_WzRo9ar=VvxFhrHi+rJxns997F+yvkm==A@mail.gmail.com
 		2022-07-26 14:56:25 -04:00
config Unify DLSUFFIX on Darwin 2022-07-06 07:41:33 +02:00
contrib Add test for session_preload_libraries and parameter permissions checks. 2022-07-25 15:45:24 -04:00
doc Remove the restriction that the relmap must be 512 bytes. 2022-07-26 14:56:25 -04:00
src Remove the restriction that the relmap must be 512 bytes. 2022-07-26 14:56:25 -04:00
.cirrus.yml Make upgradecheck a no-op in MSVC's vcregress.pl 2022-04-02 12:06:11 +09:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Add .editorconfig 2019-12-18 09:13:13 +01:00
.git-blame-ignore-revs Add 82d0ffae3 to git-blame-ignore-revs. 2022-06-30 11:08:12 -04:00
.gitattributes Remove trailing whitespace from *.sgml files. 2022-04-20 11:04:49 -04:00
.gitignore Support for optimizing and emitting code in LLVM JIT provider. 2018-03-22 11:05:22 -07:00
COPYRIGHT Update copyright for 2022 2022-01-07 19:04:57 -05:00
GNUmakefile.in Run tests of libpq on installcheck-world, checkprep and check-world 2022-06-03 13:15:20 +09:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Dynamically find correct installation docs in Makefile. 2022-01-19 14:48:25 +01:00
README Canonicalize some URLs 2020-02-10 20:47:50 +01:00
README.git Canonicalize some URLs 2020-02-10 20:47:50 +01:00
aclocal.m4 Probe $PROVE not $PERL while checking for modules needed by TAP tests. 2021-11-22 12:54:52 -05:00
configure Remove dead getpwuid_r replacement code. 2022-07-24 09:44:29 +12:00
configure.ac Remove dead getpwuid_r replacement code. 2022-07-24 09:44:29 +12:00

README 

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/.