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Jeff Davis 3b50275b12 Handle the "und" locale in ICU versions 54 and older. 
The "und" locale is an alternative spelling of the root locale, but it
was not recognized until ICU 55. To maintain common behavior across
all supported ICU versions, check for "und" and replace with "root"
before opening.

Previously, the lack of support for "und" was dangerous, because
versions 54 and older fall back to the environment when a locale is
not found. If the user specified "und" for the language (which is
expected and documented), it could not only resolve to the wrong
collator, but it could unexpectedly change (which could lead to
corrupt indexes).

This effectively reverts commit d72900bded, which worked around the
problem for the built-in "unicode" collation, and is no longer
necessary.

Discussion: https://postgr.es/m/60da0cecfb512a78b8666b31631a636215d8ce73.camel@j-davis.com
Discussion: https://postgr.es/m/0c6fa66f2753217d2a40480a96bd2ccf023536a1.camel@j-davis.com
Reviewed-by: Peter Eisentraut
2023-03-23 10:08:27 -07:00
..
backend Handle the "und" locale in ICU versions 54 and older. 2023-03-23 10:08:27 -07:00
bin Handle the "und" locale in ICU versions 54 and older. 2023-03-23 10:08:27 -07:00
common Add SHELL_ERROR and SHELL_EXIT_CODE magic variables to psql. 2023-03-21 13:03:56 -04:00
fe_utils Revert refactoring of restore command code to shell_restore.c 2023-02-06 08:28:42 +09:00
include Improve the naming of Parallel Hash Join phases. 2023-03-23 13:14:25 +13:00
interfaces libpq: Use modern socket flags, if available. 2023-03-17 20:40:34 +13:00
makefiles meson: Make auto the default of the ssl option 2023-03-13 07:04:11 +01:00
pl Fix a couple of typos 2023-03-22 08:44:59 +09:00
port Use nanosleep() to implement pg_usleep(). 2023-03-15 17:57:12 +13:00
template Use unnamed POSIX semaphores on Cygwin. 2023-01-06 10:33:28 +13:00
test Handle the "und" locale in ICU versions 54 and older. 2023-03-23 10:08:27 -07:00
timezone Fix outdated references to guc.c 2023-03-02 13:49:39 +01:00
tools Add missing "-I." flag when building pg_bsd_indent. 2023-03-23 13:01:44 -04:00
tutorial Remove useless casts to (void *) in arguments of some system functions 2023-02-07 06:57:59 +01:00
.gitignore
DEVELOPERS
Makefile Integrate pg_bsd_indent into our build/test infrastructure. 2023-02-12 12:22:21 -05:00
Makefile.global.in autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
Makefile.shlib autoconf: Rely on ar supporting index creation 2022-10-07 11:53:39 -07:00
meson.build Integrate pg_bsd_indent into our build/test infrastructure. 2023-02-12 12:22:21 -05:00
nls-global.mk Fix for make unportability 2022-07-13 09:15:01 +02:00