selfuncs.c: use pg_strxfrm() instead of strxfrm(). pg_strxfrm() takes a pg_locale_t, so it works properly with all providers. This improves estimates for ICU when performing linear interpolation within a histogram bin.
Previously, convert_string_datum() always used strxfrm() and relied on setlocale(). That did not produce good estimates for non-default or non-libc collations. Discussion: https://postgr.es/m/89475ee5487d795124f4e25118ea8f1853edb8cb.ca...@j-davis.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/a890ad214942c9eab1b2f0c6997e7dc114f99e71 Modified Files -------------- src/backend/utils/adt/pg_locale.c | 23 ++++++++++++++++------- src/backend/utils/adt/selfuncs.c | 13 +++++++++---- 2 files changed, 25 insertions(+), 11 deletions(-)
