Thread: pgsql: Control collation behavior with a method table.

Control collation behavior with a method table.

Previously, behavior branched based on the provider. A method table is
less error-prone and more flexible.

The ctype behavior will be addressed in an upcoming commit.

Reviewed-by: Andreas Karlsson
Discussion: https://postgr.es/m/2830211e1b6e6a2e26d845780b03e125281ea17b.camel%40j-davis.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/a2f17f004d229f69a32cfa80904b95edcbc68f95

Modified Files
--------------
src/backend/utils/adt/pg_locale.c      | 123 ++++-----------------------
src/backend/utils/adt/pg_locale_icu.c  | 147 +++++++++++++++++++--------------
src/backend/utils/adt/pg_locale_libc.c |  53 ++++++++++--
src/include/utils/pg_locale.h          |  33 ++++++++
4 files changed, 180 insertions(+), 176 deletions(-)