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Tom Lane 576bd360b2 Fix test about ignoring extension dependencies during extension scripts. Commit `08dd23cec` introduced an exception to the rule that extension member objects can only be dropped as part of dropping the whole extension, intending to allow such drops while running the extension's own creation or update scripts. However, the exception was only applied at the outermost recursion level, because it was modeled on a pre-existing check to ignore dependencies on objects listed in pendingObjects. Bug #14434 from Philippe Beaudoin shows that this is inadequate: in some cases we can reach an extension member object by recursion from another one. (The bug concerns the serial-sequence case; I'm not sure if there are other cases, but there might well be.) To fix, revert 08dd23cec's changes to findDependentObjects() and instead apply the creating_extension exception regardless of stack level. Having seen this example, I'm a bit suspicious that the pendingObjects logic is also wrong and such cases should likewise be allowed at any recursion level. However, changing that would interact in subtle ways with the recursion logic (at least it would need to be moved to after the recursing-from check). Given that the code's been like that a long time, I'll refrain from touching it without a clear example showing it's wrong. Back-patch to all active branches. In HEAD and 9.6, where suitable test infrastructure exists, add a regression test case based on the bug report. Report: <20161125151448.6529.33039@wrigleys.postgresql.org> Discussion: <13224.1480177514@sss.pgh.pa.us>		2016-11-26 13:31:35 -05:00
config	Fix configure's incorrect version tests for flex and perl.	2016-05-02 11:18:10 -04:00
contrib	Make contrib/test_decoding regression tests safe for CZ locale.	2016-11-21 20:39:28 -05:00
doc	Doc: in back branches, don't call it a row constructor if it isn't really.	2016-11-22 18:07:43 -05:00
src	Fix test about ignoring extension dependencies during extension scripts.	2016-11-26 13:31:35 -05:00
.dir-locals.el	emacs: Set indent-tabs-mode in perl-mode	2015-04-12 23:53:23 -04:00
.gitattributes	Add functions for dealing with PGP armor header lines to pgcrypto.	2014-10-01 16:03:39 +03:00
.gitignore	Improve speed of make check-world	2015-04-23 08:59:52 -04:00
aclocal.m4	Revert changes to pthread configure tests on REL9_5_STABLE.	2015-07-09 10:59:10 +03:00
configure	Stamp 9.5.5.	2016-10-24 16:10:50 -04:00
configure.in	Stamp 9.5.5.	2016-10-24 16:10:50 -04:00
COPYRIGHT	Update copyright for 2016	2016-01-02 13:33:39 -05:00
GNUmakefile.in	Fix distclean/maintainer-clean targets to remove top-level tmp_install dir.	2015-05-13 18:48:05 -04:00
HISTORY	Improve text of stub HISTORY file.	2014-02-12 18:16:17 -05:00
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README.git

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:

	http://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
http://www.postgresql.org/download/.  For more information look at our
web site located at http://www.postgresql.org/.