"V S P" <toreason(at)fastmail(dot)fm> writes:
> What does this LOG string mean, and what should I do?
That's supposed to be a can't-happen case. How did you provoke it
exactly? (No, you didn't provide enough detail for someone else
to reproduce it...)
Are you by any chance using database encoding mule_internal?
That's the only case I'm aware of where I'd expect setting
client_encoding to utf8 to fail.
regards, tom lane