> Tatsuo Ishii <is...@postgresql.org> writes: > >> Tatsuo Ishii <is...@postgresql.org> writes: > >>> It seems between 8.4 and CVS HEAD backend responses 'E' packet > >>> (error/fatal message) if a startup packet sent with wrong user and/or > >>> database. Before backend responses 'R' packet first followd by 'E' > >>> packet. > > > I now understand that those behavior could be changed randomly release > > to relase in unpredictable way. > > I think the protocol specification is pretty explicit that you shouldn't > be relying on specific sequences of events where it's not logically > necessary that things happen in a particular order. It's always been > possible for a connection to be rejected before any 'R' is sent; we've > only made a minor change in the set of error cases for which that's > true.
No. I would say CVS HEAD's behavior that it returns 'E' first is ok if it is given wrong database. Problem is in 8.4 or before and HEAD returns Authentication ok ('R'+0x8+0x0) then 'E' if wrong user is given. How come backend says "Great! authentication ok" then "Sorry your database is wrong so authentican failed". FYI 8.4 or before always returns Authentication ok then 'E' if user and/or database is wrong. Maybe we should change "AuthenticationOK" to "AuthenticationMaybeOK"?:-) -- Tatsuo Ishii SRA OSS, Inc. Japan English: http://www.sraoss.co.jp/index_en.php Japanese: http://www.sraoss.co.jp -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers