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(parent: a54d4ed) | patch
selfuncs.c: use pg_strxfrm() instead of strxfrm().
authorJeff Davis <jdavis@postgresql.org>
Tue, 6 Aug 2024 18:55:21 +0000 (11:55 -0700)
committerJeff Davis <jdavis@postgresql.org>
Tue, 6 Aug 2024 19:25:12 +0000 (12:25 -0700)
commita890ad214942c9eab1b2f0c6997e7dc114f99e71
tree7d3d4a461249eeb528a5739371c9cb6550daeb28tree
parenta54d4ed183927f15e1853b83106acebeeeee11c8commit | diff
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.camel@j-davis.com
src/backend/utils/adt/pg_locale.c diff | blob | blame | history
src/backend/utils/adt/selfuncs.c diff | blob | blame | history
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