Fix missed case for builtin collation provider. A missed check for the builtin collation provider could result in falling through to call isalpha().
This does not appear to have practical consequences because it only happens for characters in the ASCII range. Regardless, the builtin provider should not be calling libc functions, so backpatch. Discussion: https://postgr.es/m/1bd5a0a5192f82c22ee7527e825b18ab0028b2c7.ca...@j-davis.com Backpatch-through: 17 Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/98c5b191e74b65b74149bb436b057d7007d401a7 Modified Files -------------- src/backend/utils/adt/like_support.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)