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Michael Paquier 6fb7c5d67c Centralize timestamp computation of control file on updates 
This commit moves the timestamp computation of the control file within
the routine of src/common/ in charge of updating the backend's control
file, which is shared by multiple frontend tools (pg_rewind,
pg_checksums and pg_resetwal) and the backend itself.

This change has as direct effect to update the control file's timestamp
when writing the control file in pg_rewind and pg_checksums, something
that is helpful to keep track of control file updates for those
operations, something also tracked by the backend at startup within its
logs.  This part is arguably a bug, as ControlFileData->time should be
updated each time a new version of the control file is written, but this
is a behavior change so no backpatch is done.

Author: Amul Sul
Reviewed-by: Nathan Bossart, Michael Paquier, Bharath Rupireddy
Discussion: https://postgr.es/m/CAAJ_b97nd_ghRpyFV9Djf9RLXkoTbOUqnocq11WGq9TisX09Fw@mail.gmail.com
 		2021-11-29 13:36:13 +09:00
config Pacify perlcritic. 2021-11-22 15:57:31 -05:00
contrib Replace random(), pg_erand48(), etc with a better PRNG API and algorithm. 2021-11-28 21:33:07 -05:00
doc Copy-edit vacuuumdb --analyze-in-stages doc blurb 2021-11-26 14:42:15 -03:00
src Centralize timestamp computation of control file on updates 2021-11-29 13:36:13 +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 another old commit to git-blame-ignore-revs. 2021-11-03 17:34:19 -07:00
.gitattributes gitattributes: Add new entry to silence whitespace error 2021-06-05 07:57:31 +02:00
.gitignore Support for optimizing and emitting code in LLVM JIT provider. 2018-03-22 11:05:22 -07:00
COPYRIGHT Update copyright for 2021 2021-01-02 13:06:25 -05:00
GNUmakefile.in add missing tag from commit b8c4261e5e 2021-07-01 15:47:46 -04:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Don't unset MAKEFLAGS in non-GNU Makefile. 2019-06-25 09:36:21 +12:00
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 Replace random(), pg_erand48(), etc with a better PRNG API and algorithm. 2021-11-28 21:33:07 -05:00
configure.ac Replace random(), pg_erand48(), etc with a better PRNG API and algorithm. 2021-11-28 21:33:07 -05:00

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/.