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Michael Paquier 783d8abc3b Fix behavior with pg_restore -l and compressed dumps 
pg_restore -l has always been able to read the TOC data of a dump even
if its binary has no support for compression, for both compressed and
uncompressed dumps.  5e73a60 has introduced a backward-incompatible
behavior by switching a warning to a hard error in the code path reading
the header data of a dump, preventing the TOC items to be listed even if
pg_restore -l, with no support for compression, is used on a compressed
dump.  Most modern systems should have support for zlib, but it can be
also possible that somebody relies on the past behavior when copying
over a dump where binaries are not built with zlib support (most likely
some WIN32 flavors these days, though most environments should provide
that).

There is no easy way to have a regression test for this pattern, as it
requires a mix of dump/restore commands with different compilation
options, with and without compression.  One possibility I see here would
be to have a command-line option that enforces a non-compression check
for a build that supports compression, but that does not seem worth the
cost, either.

Reported-by: Justin Pryzby
Author: Georgios Kokolatos
Discussion: https://postgr.es/m/20230125180020.GF22427@telsasoft.com
2023-01-27 10:19:50 +09:00
config autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
contrib Remove gratuitous references to postmaster program 2023-01-26 10:48:32 +01:00
doc Doc: use less-awkward phrasing. 2023-01-26 11:34:17 -05:00
src Fix behavior with pg_restore -l and compressed dumps 2023-01-27 10:19:50 +09:00
.cirrus.yml Fix typos in comments, code and documentation 2023-01-03 16:26:14 +09:00
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aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
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README.git Canonicalize some URLs 2020-02-10 20:47:50 +01:00

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/.