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Tom Lane fd182a92ad Make pg_dump acquire lock on partitioned tables that are to be dumped. 
It was clearly the intent to do so all along, but the original coding
fat-fingered this by checking the wrong array element.  We fixed it
in passing in 403a3d91c, but that later got reverted, and we forgot
to keep this bug fix.

Most of the time this'd be relatively harmless, since once we lock
any of the partitioned table's leaf partitions, that would suffice
to prevent major DDL on the partitioned table itself.  However, a
childless partitioned table would get dumped with no relevant lock
whatsoever, possibly allowing dump failure or inconsistent output.

Unlike 403a3d91c, there are no versioning concerns, since every server
version that has partitioned tables will allow you to lock one.

Back-patch to v10 where partitioned tables were introduced.

Discussion: https://postgr.es/m/1018205.1634346327@sss.pgh.pa.us
2021-10-16 12:24:24 -04:00
config jit: configure: Explicitly reference 'native' component. 2020-12-07 18:39:32 -08:00
contrib postgres_fdw: Move comments about elog level in (sub)abort cleanup. 2021-10-13 19:00:05 +09:00
doc Doc: improve description of UNION/INTERSECT/EXCEPT syntax. 2021-10-05 10:24:14 -04:00
src Make pg_dump acquire lock on partitioned tables that are to be dumped. 2021-10-16 12:24:24 -04:00
.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
aclocal.m4 Remove configure-time probe for DocBook DTD. 2020-11-30 15:24:13 -05:00
configure Stamp 12.8. 2021-08-09 16:50:41 -04:00
configure.in Stamp 12.8. 2021-08-09 16:50:41 -04:00
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

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/.