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Michael Paquier f46bee346c Fix dumps of partitioned tables with table AMs 
pg_dump/restore failed to properly set the table access method for
partitioned tables, as it relies on SET queries that would change
default_table_access_method.  However, SET affects only tables and
materialized views, not partitioned tables which would always be
restored with their pg_class.relam set to 0, losing their table AM set
by either a CREATE TABLE .. USING or by a ALTER TABLE .. SET ACCESS
METHOD.

Appending a USING clause to the definition of CREATE TABLE is not
possible as users may specify --no-table-access-method at restore or for
a dump, meaning that the table AM portions may have to be skipped.
Rather than SET, the solution used by this commit is to generate an
extra ALTER TABLE .. SET ACCESS METHOD when restoring a partitioned
table, based on the table AM set in its TOC entry.  The choice of using
a SET query or an ALTER TABLE query for a relation requires the addition
of the relkind to the TOC entry to be able to choose between one or the
other.  Note that using ALTER TABLE SET ACCESS METHOD on a relation with
physical storage would require a full rewrite, which would be costly for
one.  This also creates problems with binary upgrades where the rewrite
would not be able to keep the OID of the relation consistent across the
upgrade.

This commit would normally require a protocol bump, but a45c78e328 has
already done one for this release cycle.

Regression tests are adjusted with the new expected output, with some
tweaks for the table AMs of the partitions to make the output more
readable.

Issue introduced by 374c7a2290, that has added support for table AMs
in partitioned tables.

Author: Michael Paquier
Reviewed-by: Álvaro Herrera
Discussion: https://postgr.es/m/Zh4JLSvvtQgBJZkZ@paquier.xyz
 		2024-04-22 15:15:36 +09:00
config Update config.guess and config.sub 2024-04-09 14:21:57 +02:00
contrib Make postgres_fdw request remote time zone 'GMT' not 'UTC'. 2024-04-21 13:46:20 -04:00
doc createdb: Correct parameter name in SGML docs 2024-04-20 18:54:09 +02:00
src Fix dumps of partitioned tables with table AMs 2024-04-22 15:15:36 +09:00
.cirrus.star Remove duplicate words in docs and code comments. 2023-10-09 09:18:47 +05:30
.cirrus.tasks.yml Add tests for libpq gssencmode and sslmode options 2024-04-08 02:49:32 +03:00
.cirrus.yml ci: Make compute resources for CI configurable 2023-08-23 15:15:28 -07:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
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.git-blame-ignore-revs Add commit 64e401b62b to .git-blame-ignore-revs. 2024-03-26 15:08:47 -05:00
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COPYRIGHT Update copyright for 2024 2024-01-03 20:49:05 -05:00
GNUmakefile.in make dist uses git archive 2024-03-25 06:29:53 +01:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Remove AIX support 2024-02-28 15:17:23 +04:00
README.md Revise the style of a paragraph in README.md. 2024-03-21 10:16:41 -05:00
aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
configure Optimize pg_popcount() with AVX-512 instructions. 2024-04-06 21:56:23 -05:00
configure.ac Optimize pg_popcount() with AVX-512 instructions. 2024-04-06 21:56:23 -05:00
meson.build meson: Add some missing LLVM function checks 2024-04-17 15:20:58 +02:00
meson_options.txt Add backend support for injection points 2024-01-22 10:15:50 +09:00

README.md

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.

Copyright and license information can be found in the file COPYRIGHT.

General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.

The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.