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5e6e42e44f
Avoid dependence on setlocale(). strcoll(), etc., are not called directly; all collation-sensitive calls should go through pg_locale.c and use the appropriate provider. By setting LC_COLLATE to C, we avoid accidentally depending on libc behavior when using a different provider. No behavior change in the backend, but it's possible that some extensions will be affected. Such extensions should be updated to use the pg_locale_t APIs. Discussion: https://postgr.es/m/9875f7f9-50f1-4b5d-86fc-ee8b03e8c162@eisentraut.org Reviewed-by: Peter Eisentraut <peter@eisentraut.org>