Daniel Gustafsson <daniel(at)yesql(dot)se> writes:
> This is indeed buggy and need to take the length into account, as per the
> attached. This only happens when in the undocumented regression test debug
> mode which may be why it's gone unnoticed.
Seeing that this code is exercised thousands of times a day in the
regression tests and has had a failure rate of exactly zero (and
yes, the tests do check the output), there must be some reason
why it's okay.
regards, tom lane