Fix unintentional behavior change in commit e9931bfb75.
Prior to that commit, there was special case to use ASCII case mapping
behavior for the libc provider with a single-byte encoding when that's
the default collation. Commit e9931bfb75 mistakenly eliminated that
special case; this commit restores it.
Discussion: https://postgr.es/m/01a104f0d2179d756261e90d96fd65c36ad6fcf0.camel@j-davis.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/e3fa2b037c6f0f435838e99200050dc54c306085
Modified Files
--------------
src/backend/utils/adt/formatting.c | 30 +++++++++++++++++++++++++-----
src/backend/utils/adt/like.c | 2 ++
src/backend/utils/adt/pg_locale.c | 2 ++
src/include/utils/pg_locale.h | 1 +
4 files changed, 30 insertions(+), 5 deletions(-)