postgresql

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Tom Lane 7fed801135 Clean up inconsistent use of fflush(). More than twenty years ago (`79fcde48b`), we hacked the postmaster to avoid a core-dump on systems that didn't support fflush(NULL). We've mostly, though not completely, hewed to that rule ever since. But such systems are surely gone in the wild, so in the spirit of cleaning out no-longer-needed portability hacks let's get rid of multiple per-file fflush() calls in favor of using fflush(NULL). Also, we were fairly inconsistent about whether to fflush() before popen() and system() calls. While we've received no bug reports about that, it seems likely that at least some of these call sites are at risk of odd behavior, such as error messages appearing in an unexpected order. Rather than expend a lot of brain cells figuring out which places are at hazard, let's just establish a uniform coding rule that we should fflush(NULL) before these calls. A no-op fflush() is surely of trivial cost compared to launching a sub-process via a shell; while if it's not a no-op then we likely need it. Discussion: https://postgr.es/m/2923412.1661722825@sss.pgh.pa.us		2022-08-29 13:55:41 -04:00
config	Remove further unwanted linker flags from perl_embed_ldflags	2022-08-23 16:27:24 +02:00
contrib	Fix the incorrect assertion introduced in commit `7f13ac8123`.	2022-08-29 08:10:10 +05:30
doc	Remove stray "the".	2022-08-29 12:35:46 -04:00
src	Clean up inconsistent use of fflush().	2022-08-29 13:55:41 -04:00
.cirrus.yml	ci: remove minor version from freebsd image name	2022-07-31 18:51:47 -07:00
.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	Backpatch addition of .git-blame-ignore-revs	2022-08-05 19:36:24 +02:00
.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
aclocal.m4	Probe $PROVE not $PERL while checking for modules needed by TAP tests.	2021-11-22 12:54:52 -05:00
configure	Remove configure probe for sockaddr_in6 and require AF_INET6.	2022-08-26 10:18:30 +12:00
configure.ac	Remove configure probe for sockaddr_in6 and require AF_INET6.	2022-08-26 10:18:30 +12:00
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

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/.