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Tom Lane 07eb22a776 Ensure we have a snapshot while dropping ON COMMIT DROP temp tables. Dropping a temp table could entail TOAST table access to clean out toasted catalog entries, such as large pg_constraint.conbin strings for complex CHECK constraints. If we did that via ON COMMIT DROP, we triggered the assertion in init_toast_snapshot(), because there was no provision for setting up a snapshot for the drop actions. Fix that. (I assume here that the adjacent truncation actions for ON COMMIT DELETE ROWS don't have a similar problem: it doesn't seem like nontransactional truncations would need to touch any toasted fields. If that proves wrong, we could refactor a bit to have the same snapshot acquisition cover that too.) The test case added here does not fail before v15, because that assertion was added in `277692220` which was not back-patched. However, the race condition the assertion warns of surely exists further back, so back-patch to all supported branches. Per report from Richard Guo. Discussion: https://postgr.es/m/CAMbWs4-x26=_QxxgdJyNbiCDzvtr2WV5ZDso_v-CukKEe6cBZw@mail.gmail.com		2023-10-16 14:06:11 -04:00
config	Use --strip-unneeded when stripping static libraries with GNU strip.	2023-04-20 18:12:32 -04:00
contrib	postgres_fdw: Fix test for parameterized foreign scan.	2023-08-30 17:15:08 +09:00
doc	Doc: fix grammatical errors for enable_partitionwise_aggregate	2023-10-12 21:17:27 +13:00
src	Ensure we have a snapshot while dropping ON COMMIT DROP temp tables.	2023-10-16 14:06:11 -04:00
.dir-locals.el	Make Emacs perl-mode indent more like perltidy.	2019-01-13 11:32:31 -08:00
.git-blame-ignore-revs	Backpatch addition of .git-blame-ignore-revs	2022-08-05 19:36:24 +02:00
.gitattributes	Add XSL stylesheet to fix up SVG files	2019-06-19 21:26:42 +02:00
.gitignore	Add portlock directory to .gitignore	2022-11-26 07:47:22 -05:00
COPYRIGHT	Update copyright for 2023	2023-01-02 15:00:36 -05:00
GNUmakefile.in	Remove temporary portlock directory during make [dist]clean.	2022-11-26 10:31:03 -05:00
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	Probe $PROVE not $PERL while checking for modules needed by TAP tests.	2021-11-22 12:54:52 -05:00
configure	Stamp 12.16.	2023-08-07 16:13:41 -04:00
configure.in	Stamp 12.16.	2023-08-07 16:13:41 -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/.