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| author | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2013-03-25 11:02:55 +0200 |
|---|---|---|
| committer | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2013-03-25 11:02:55 +0200 |
| commit | 6980497f7d7f4d17b918a7a433aa904943a4bb97 (patch) | |
| tree | d6e9b8c365a94aab9788855f428b3618f86991e7 /src/tutorial/complex.source | |
| parent | 3a003c5a3a9af7973a2a3422cd62d2b08292a595 (diff) | |
Add a server version check to pg_basebackup and pg_receivexlog.
These programs don't work against 9.0 or earlier servers, so check that when
the connection is made. That's better than a cryptic error message you got
before.
Also, these programs won't work with a 9.3 server, because the WAL streaming
protocol was changed in a non-backwards-compatible way. As a general rule,
we don't make any guarantee that an old client will work with a new server,
so check that. However, allow a 9.1 client to connect to a 9.2 server, to
avoid breaking environments that currently work; a 9.1 client happens to
work with a 9.2 server, even though we didn't make any great effort to
ensure that.
This patch is for the 9.1 and 9.2 branches, I'll commit a similar patch to
master later. Although this isn't a critical bug fix, it seems safe enough
to back-patch. The error message you got when connecting to a 9.3devel
server without this patch was cryptic enough to warrant backpatching.
Diffstat (limited to 'src/tutorial/complex.source')
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