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Validate ICU locales.

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For ICU collations, ensure that the locale's language exists in ICU,
and that the locale can be opened.

Basic validation helps avoid minor mistakes and misspellings, which
often fall back to the root locale instead of the intended
locale. It's even more important to avoid such mistakes in ICU
versions 54 and earlier, where the same (misspelled) locale string
could fall back to different locales depending on the environment.

Discussion: https://postgr.es/m/11b1eeb7e7667fdd4178497aeb796c48d26e69b9.camel@j-davis.com
Discussion: https://postgr.es/m/df2efad0cae7c65180df8e5ebb709e5eb4f2a82b.camel@j-davis.com
Reviewed-by: Peter Eisentraut
This commit is contained in:
Jeff Davis
2023-03-28 16:15:59 -07:00
parent b7cea58822
commit 1671f990dd
11 changed files with 210 additions and 13 deletions
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2
src/backend/commands/dbcommands.c
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@ -1058,7 +1058,7 @@ createdb(ParseState *pstate, const CreatedbStmt *stmt)
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("ICU locale must be specified")));
check_icu_locale(dbiculocale);
icu_validate_locale(dbiculocale);
}
else
{