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Add Alpine locale information for Postgres 15 #2220

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Oct 18, 2022
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Add Alpine locale information for Postgres 15 #2220

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Add Alpine locale information for Postgres 15
wglambert Oct 17, 2022
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Update postgres/content.md
wglambert Oct 17, 2022
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Update postgres/content.md
wglambert Oct 18, 2022
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8 changes: 7 additions & 1 deletion postgres/content.md
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Expand Up @@ -180,7 +180,13 @@ ENV LANG de_DE.utf8

Since database initialization only happens on container startup, this allows us to set the language before it is created.

Also of note, Alpine-based variants do *not* support locales; see ["Character sets and locale" in the musl documentation](https://wiki.musl-libc.org/functional-differences-from-glibc.html#Character-sets-and-locale) for more details.
Also of note, Alpine-based variants starting with Postgres 15 support [ICU locales](https://www.postgresql.org/docs/15/locale.html#id-1.6.11.3.7). Previous Postgres versions based on alpine do *not* support locales; see ["Character sets and locale" in the musl documentation](https://wiki.musl-libc.org/functional-differences-from-glibc.html#Character-sets-and-locale) for more details.

You can set locales in the Alpine-based images with `POSTGRES_INITDB_ARGS` to set a different locale. The following example will set the default locale for a newly initialized database to `de_DE.utf8`:

```console
$ docker run -d -e LANG=de_DE.utf8 -e POSTGRES_INITDB_ARGS="--locale-provider=icu --icu-locale=de-DE" -e POSTGRES_PASSWORD=mysecretpassword %%IMAGE%%:15-alpine
```

## Additional Extensions

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