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Michael Paquier a9993416f8 Add table to regression tests for binary-compatibility checks in pg_upgrade 
This commit adds to the main regression test suite a table with all
the in-core data types (some exceptions apply).  This table is not
dropped, so as pg_upgrade would be able to check the binary
compatibility of the types tracked in the table.  If a new type is added
in core, this part of the tests would need a refresh but the tests are
designed to fail if that were to happen.

As this is useful for upgrades and that these rely on the objects
created in the regression test suite of the old version upgraded from,
a backpatch down to 12 is done, which is the last point where a binary
incompatible change has been done (7c15cef).  This will hopefully be
enough to find out if something gets broken during the development of a
new version of Postgres, so as it is possible to take actions in
pg_upgrade itself in this case (like 0ccfc28 for sql_identifier).

An area that is not covered yet is related to external modules, which
may create their own types.  The testing infrastructure of pg_upgrade is
not integrated yet with the external modules stored in core
(src/test/modules/ or contrib/, all use the same database name for their
tests so there would be an overlap).  This could be improved in the
future.

Author: Justin Pryzby
Reviewed-by: Jacob Champion, Peter Eisentraut, Tom Lane, Michael Paquier
Discussion: https://postgr.es/m/20201206180248.GI24052@telsasoft.com
Backpatch-through: 12
 		2021-11-18 10:37:43 +09:00
config jit: configure: Explicitly reference 'native' component. 2020-12-07 18:39:32 -08:00
contrib Don't try to read a multi-GB pg_stat_statements file in one call. 2021-10-31 19:13:48 -04:00
doc Doc: add see-also references to CREATE PUBLICATION. 2021-11-17 13:34:41 +01:00
src Add table to regression tests for binary-compatibility checks in pg_upgrade 2021-11-18 10:37:43 +09:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.gitattributes Add XSL stylesheet to fix up SVG files 2019-06-19 21:26:42 +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 13:06:24 -05:00
GNUmakefile.in Add new make targets world-bin and install-world-bin 2021-07-01 14:51:54 -04:00
HISTORY Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
Makefile Don't unset MAKEFLAGS in non-GNU Makefile. 2019-06-25 09:36:21 +12:00
README Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
README.git Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
aclocal.m4 Remove configure-time probe for DocBook DTD. 2020-11-30 15:24:13 -05:00
configure Clean up compilation warnings coming from PL/Perl with clang-12~ 2021-11-11 10:51:17 +09:00
configure.in Clean up compilation warnings coming from PL/Perl with clang-12~ 2021-11-11 10:51:17 +09:00

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/.