Allow NULL version for individual collations.
Remove the documented restriction that collation providers must either
return NULL for all collations or non-NULL for all collations.
Use NULL for glibc collations like "C.UTF-8", which might otherwise lead
future proposed commits to force unnecessary index rebuilds.
Reviewed-by: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Discussion: https://postgr.es/m/CA%2BhUKGJvqup3s%2BJowVTcacZADO6dOhfdBmvOPHLS3KXUJu41Jw%40mail.gmail.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/382a821907e76bf6068492a164fdfc57578391f4
Modified Files
--------------
src/backend/utils/adt/pg_locale.c | 21 +++++++++++++++++----
1 file changed, 17 insertions(+), 4 deletions(-)