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Michael Paquier f1958351ea Forbid DROP SCHEMA on temporary namespaces 
This operation was possible for the owner of the schema or a superuser.
Down to 9.4, doing this operation would cause inconsistencies in a
session whose temporary schema was dropped, particularly if trying to
create new temporary objects after the drop.  A more annoying
consequence is a crash of autovacuum on an assertion failure when
logging information about an orphaned temp table dropped.  Note that
because of 246a6c8 (present in v11~), which has made the removal of
orphaned temporary tables more aggressive, the failure could be
triggered more easily, but it is possible to reproduce down to 9.4.

Reported-by: Mahendra Singh, Prabhat Sahu
Author: Michael Paquier
Reviewed-by: Kyotaro Horiguchi, Mahendra Singh
Discussion: https://postgr.es/m/CAKYtNAr9Zq=1-ww4etHo-VCC-k120YxZy5OS01VkaLPaDbv2tg@mail.gmail.com
Backpatch-through: 9.4
2019-12-27 17:59:21 +09:00
..
backend Forbid DROP SCHEMA on temporary namespaces 2019-12-27 17:59:21 +09:00
bin Handle arrays and ranges in pg_upgrade's test for non-upgradable types. 2019-11-13 11:35:37 -05:00
common Tolerate EINVAL when calling fsync() on a directory. 2019-02-24 23:52:20 +13:00
fe_utils Fix translation of special characters in psql's LaTeX output modes. 2018-11-26 17:32:51 -05:00
include Fix misbehavior with expression indexes on ON COMMIT DELETE ROWS tables. 2019-12-01 13:09:27 -05:00
interfaces libpq should expose GSS-related parameters even when not implemented. 2019-12-20 15:34:08 -05:00
makefiles Select CFLAGS_SL at configure time, not in platform-specific Makefiles. 2019-10-21 12:32:36 -04:00
pl Translation updates 2019-11-11 10:33:28 +01:00
port In pgwin32_open, loop after ERROR_ACCESS_DENIED only if we can't stat. 2019-12-21 17:39:36 -05:00
template Select CFLAGS_SL at configure time, not in platform-specific Makefiles. 2019-10-21 12:32:36 -04:00
test Disallow partition key expressions that return pseudo-types. 2019-12-23 12:53:13 -05:00
timezone Update time zone data files to tzdata release 2019c. 2019-09-20 19:54:07 -04:00
tools Handle spaces in OpenSSL install location for MSVC 2019-10-04 15:39:12 -04:00
tutorial Phase 2 of pgindent updates. 2017-06-21 15:19:25 -04:00
.gitignore Convert cvsignore to gitignore, and add .gitignore for build targets. 2010-09-22 12:57:04 +02:00
DEVELOPERS Replace a couple of references to files that no longer exist in the source 2009-05-04 08:08:47 +00:00
Makefile Build src/test/isolation during "make" and "make install". 2017-11-22 20:18:52 -08:00
Makefile.global.in Select CFLAGS_SL at configure time, not in platform-specific Makefiles. 2019-10-21 12:32:36 -04:00
Makefile.shlib Ensure static libraries have correct mod time even if ranlib messes it up. 2018-11-29 15:53:44 -05:00
nls-global.mk nls-global.mk: search build dir for source files, too 2016-06-07 18:55:18 -04:00