Tatsuo Ishii <ishii@postgresql.org> writes:
>> No, we've never exported those with the intent that client code should
>> use 'em.
> I thought PQescapeString() of 8.3 uses mbverify functions to make sure
> that user supplied multibyte string is valid.
Certainly --- but we can change PQescapeString to match whatever we do
with the pg_wchar functions. The question was whether we intend to
support client application code (outside libpq) using those functions.
That's definitely not the intent. exports.txt lists only PQmblen and
pg_utf_mblen as exported (and I have to wonder why the latter is
separately exported...), which means that client code on modern
platforms isn't even capable of getting at the others.
regards, tom lane
