Garen Torikian <gjtorik...@gmail.com> writes: >> Perhaps the docs are a bit unclear about that, but it's not >> restricted to ASCII alphanumerics. AFAICS the code will accept >> whatever iswalpha() and iswdigit() will accept in the database's >> default locale.
> Sorry but I don't think that is correct. Here is the single > definition check of what constitutes a valid character: > https://github.com/postgres/postgres/blob/c3315a7da57be720222b119385ed0f7ad7c15268/contrib/ltree/ltree.h#L129 > As you can see, there are no `is_*` calls at all. Did you chase down what t_isalpha and t_isdigit do? regards, tom lane
