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95f54f0d03
postgresql/src
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Tom Lane 95f54f0d03 Don't crash if cursor_to_xmlschema is used on a non-data-returning Portal. 
cursor_to_xmlschema() assumed that any Portal must have a tupDesc,
which is not so.  Add a defensive check.

It's plausible that this mistake occurred because of the rather
poorly chosen name of the lookup function SPI_cursor_find(),
which in such cases is returning something that isn't very much
like a cursor.  Add some documentation to try to forestall future
errors of the same ilk.

Report and patch by Boyu Yang (docs changes by me).  Back-patch
to all supported branches.

Discussion: https://postgr.es/m/dd343010-c637-434c-a8cb-418f53bda3b8.yangboyu.yby@alibaba-inc.com
2023-09-18 14:27:47 -04:00
..
backend Don't crash if cursor_to_xmlschema is used on a non-data-returning Portal. 2023-09-18 14:27:47 -04:00
bin Skip psql's TAP test for query cancellation entirely on Windows 2023-09-13 09:53:54 +09:00
common Fix JSON error reporting for many cases of erroneous string values. 2023-03-13 15:19:00 -04:00
fe_utils Use correct connection for cancellation in frontend's parallel slots 2022-08-27 15:22:07 +09:00
include Avoid unnecessary plancache revalidation of utility statements. 2023-08-24 12:02:40 -04:00
interfaces Translation updates 2023-05-08 14:29:57 +02:00
makefiles Refactor DLSUFFIX handling 2022-03-25 08:56:02 +01:00
pl Avoid unnecessary plancache revalidation of utility statements. 2023-08-24 12:02:40 -04:00
port Fix detection of unseekable files for fseek() and ftello() with MSVC 2023-04-12 09:09:53 +09:00
template On NetBSD, force dynamic symbol resolution at postmaster start. 2022-08-30 17:28:55 -04:00
test Track nesting depth correctly when drilling down into RECORD Vars. 2023-09-15 17:01:26 -04:00
timezone Update time zone data files to tzdata release 2023c. 2023-04-18 14:46:39 -04:00
tools Fix exception safety bug in typcache.c. 2023-09-13 14:43:04 +12:00
tutorial Doc: sync src/tutorial/basics.source with SGML documentation. 2022-11-19 13:09:14 -05:00
.gitignore
DEVELOPERS
Makefile Remove the option to build thread_test.c outside configure. 2020-10-21 12:08:48 -04:00
Makefile.global.in Fix prove_installcheck when used with PGXS 2023-05-05 07:10:15 +02:00
Makefile.shlib AIX: Fix missing libpq symbols by respecting SHLIB_EXPORTS. 2021-09-06 11:27:59 -07:00
nls-global.mk Improve frontend error logging style. 2022-04-08 14:55:14 -04:00