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Tom Lane aa25d1089a Fix up pg_dump's handling of per-attribute compression options. 
The approach used in commit bbe0a81db would've been disastrous for
portability of dumps.  Instead handle non-default compression options
in separate ALTER TABLE commands.  This reduces chatter for the
common case where most columns are compressed the same way, and it
makes it possible to restore the dump to a server that lacks any
knowledge of per-attribute compression options (so long as you're
willing to ignore syntax errors from the ALTER TABLE commands).

There's a whole lot left to do to mop up after bbe0a81db, but
I'm fast-tracking this part because we need to see if it's
enough to make the buildfarm's cross-version-upgrade tests happy.

Justin Pryzby and Tom Lane

Discussion: https://postgr.es/m/20210119190720.GL8560@telsasoft.com
 		2021-03-20 15:01:10 -04:00
config Update copyright for 2021 2021-01-02 13:06:25 -05:00
contrib Allow configurable LZ4 TOAST compression. 2021-03-19 15:10:38 -04:00
doc Provide recovery_init_sync_method=syncfs. 2021-03-20 12:07:28 +13:00
src Fix up pg_dump's handling of per-attribute compression options. 2021-03-20 15:01:10 -04:00
.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
.gitattributes gitattributes: Add new file 2019-11-12 08:13:55 +01:00
.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 Make install-tests target work with vpath builds 2020-05-31 18:33:00 -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 Remove configure-time probe for DocBook DTD. 2020-11-30 15:24:13 -05:00
configure Provide recovery_init_sync_method=syncfs. 2021-03-20 12:07:28 +13:00
configure.ac Provide recovery_init_sync_method=syncfs. 2021-03-20 12:07:28 +13:00

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/.