diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/bin/pg_basebackup/pg_basebackup.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/bin/pg_basebackup/pg_basebackup.c b/src/bin/pg_basebackup/pg_basebackup.c index 472df3a1fbf..d68e742920c 100644 --- a/src/bin/pg_basebackup/pg_basebackup.c +++ b/src/bin/pg_basebackup/pg_basebackup.c @@ -816,6 +816,9 @@ BaseBackup(void) int i; char xlogstart[64]; char xlogend[64]; + int minServerMajor, + maxServerMajor; + int serverMajor; /* * Connect in replication mode to the server @@ -823,6 +826,24 @@ BaseBackup(void) conn = GetConnection(); /* + * Check server version. BASE_BACKUP command was introduced in 9.1, so + * we can't work with servers older than 9.1. We don't officially support + * servers newer than the client, but the 9.1 version happens to work with + * a 9.2 server. This version check was added to 9.1 branch in a minor + * release, so allow connecting to a 9.2 server, to avoid breaking + * environments that worked before this version check was added. + */ + minServerMajor = 901; + maxServerMajor = 902; + serverMajor = PQserverVersion(conn) / 100; + if (serverMajor < minServerMajor || serverMajor > maxServerMajor) + { + fprintf(stderr, _("%s: unsupported server version %s\n"), + progname, PQparameterStatus(conn, "server_version")); + disconnect_and_exit(1); + } + + /* * Start the actual backup */ PQescapeStringConn(conn, escaped_label, label, sizeof(escaped_label), &i); |