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Robert Haas a2996478c3 Preserve relfilenode of pg_largeobject and its index across pg_upgrade. 
Commit 9a974cbcba did this for user
tables, but pg_upgrade treats pg_largeobject as a user table, and so
needs the same treatment. Without this fix, if you rewrite the
pg_largeobject table and then perform an upgrade with pg_upgrade, the
table will apparently be empty on the new cluster, while all of your
objects will end up with an orphaned file.

With this fix, instead of the old cluster's pg_largeobject files ending
up orphaned, the original files fro the new cluster do. That's mostly
harmless because we expect the table to be empty, but we might want
to arrange to remove the as part of the upgrade. Since we're still
debating the best way of doing that, I (rhaas) have decided to postpone
dealing with that problem and get the basic fix committed.

Justin Pryzby, reviewed by Shruthi Gowda and by me.

Discussion: http://postgr.es/m/20220701231413.GI13040@telsasoft.com
2022-07-08 10:21:10 -04:00
config Pre-beta mechanical code beautification. 2022-05-12 15:17:30 -04:00
contrib postgres_fdw: Fix grammar. 2022-07-07 16:25:00 +09:00
doc relnotes: clarify that PG 15 multi-xid is advanced more 2022-07-05 14:06:45 -04:00
src Preserve relfilenode of pg_largeobject and its index across pg_upgrade. 2022-07-08 10:21:10 -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
aclocal.m4 Probe $PROVE not $PERL while checking for modules needed by TAP tests. 2021-11-22 12:54:52 -05:00
configure Stamp 15beta2. 2022-06-27 16:11:56 -04:00
configure.ac Stamp 15beta2. 2022-06-27 16:11:56 -04:00
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/.