Re: 7.3B3 psql talking to a 7.2.3 server?
От | Rod Taylor |
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Тема | Re: 7.3B3 psql talking to a 7.2.3 server? |
Дата | |
Msg-id | 1036213510.6576.16.camel@jester обсуждение исходный текст |
Ответ на | Re: 7.3B3 psql talking to a 7.2.3 server? (Larry Rosenman <ler@lerctr.org>) |
Список | pgsql-hackers |
> > We have always allowed old clients to connect to new servers, but often > > break new servers connecting to old clients. I think this is documented > > somewhere, but it rarely comes up as an issue. > So, what do we do in this case, where an OLDER client (<=7.2.3) connects > to a new (>=7.3) server, and BASIC stuff like backslash commands BREAK > because of the schema stuff? All version mismatches are expected to cause some psql features to fail. But the basics still work fine. 7.3 happens to be a little more severe than previous releases -- though 7.0 <-> 7.1 wasn't overly happy either. See the third point in the 'NOTES' section on: http://developer.postgresql.org/docs/postgres/app-psql.html "psql only works smoothly with servers of the same version. That does not mean other combinations will fail outright, but subtle and not-so-subtle problems might come up. Backslash commands are particularly likely to fail if the server is of a different version." However, perhaps this version is worthy of a remark in the release notes with the schema description: Non-schema aware versions of the utilities distributed with PostgreSQL to be 100% functional with PostgreSQL >= 7.3. -- Rod Taylor
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