| From: | Jeff Davis <pgsql(at)j-davis(dot)com> |
|---|---|
| To: | Noah Misch <noah(at)leadboat(dot)com> |
| Cc: | Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: ICU locale validation / canonicalization |
| Date: | 2023-07-07 16:13:35 |
| Message-ID: | 1daf544dbba1334046998be3bae8cdd48f45d370.camel@j-davis.com |
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| Lists: | pgsql-hackers |
On Sat, 2023-07-01 at 10:31 -0700, Noah Misch wrote:
> As of commit b8c3f6d, InstallCheck-C got daticulocale=en-US-u-va-
> posix. Check
> got daticulocale=NULL.
With the same test setup, that locale takes about 8.6 seconds (opening
it 10M times), about 2.5X slower than "en-US" and about 7X slower than
"und". I think that explains it.
The locale "en-US-u-va-posix" normally happens when passing a locale
beginning with "C" to ICU. After 2535c74b1a we don't get ICU locales
from the environment anywhere, so that should be rare (and probably
indicates a user mistake). I don't think this is a practical problem
any more.
Regards,
Jeff Davis
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