On Fri, Apr 16, 2021 at 01:07:52PM -0400, Tom Lane wrote: > I wrote: > > ... or maybe not just yet. Andres' buildfarm critters seem to have > > a different opinion than my machine about what the output of > > collate.icu.utf8 ought to be. I wonder what the prevailing LANG > > setting is for them, and which ICU version they're using. > > Oh, I bet it's "C.utf8", because I can reproduce the failure with that. > This crystallizes a nagging feeling I'd had that you were misdescribing > the collate.icu.utf8 test as not being run under --no-locale. Actually, > it's only skipped if the encoding isn't UTF8, not the same thing. > I think we need to remove the default-collation cases from that test too.
IIUC pg_regress --no-locale will call initdb --no-locale which force the locale to C, and in that case pg_get_encoding_from_locale() does force SQL_ASCII as encoding. But yes I clearly didn't think at all that you could set the various env variables to C.utf8 which can then run the collate.icu.utf8 or linux.utf8 :(
