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Fix bug in checking of IDENTIFY_SYSTEM result.

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5a991ef869 added new column into
the result of IDENTIFY_SYSTEM command. But it was not reflected into
several codes checking that result. Specifically though the number of
columns in the result was increased to 4, it was still compared with 3
in some replication codes.

Back-patch to 9.4 where the number of columns in IDENTIFY_SYSTEM
result was increased.

Report from Michael Paquier
This commit is contained in:
Fujii Masao 2014-08-19 17:26:07 +09:00
parent 8605bc7521
commit 083d29c65b
4 changed files with 8 additions and 8 deletions
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4
src/backend/replication/libpqwalreceiver/libpqwalreceiver.c
View File

@ -131,7 +131,7 @@ libpqrcv_identify_system(TimeLineID *primary_tli)
"the primary server: %s",
PQerrorMessage(streamConn))));
}
if (PQnfields(res) < 3 || PQntuples(res) != 1)
if (PQnfields(res) < 4 || PQntuples(res) != 1)
{
int ntuples = PQntuples(res);
int nfields = PQnfields(res);
@ -140,7 +140,7 @@ libpqrcv_identify_system(TimeLineID *primary_tli)
ereport(ERROR,
(errmsg("invalid response from primary server"),
errdetail("Could not identify system: got %d rows and %d fields, expected %d rows and %d or more fields.",
ntuples, nfields, 3, 1)));
ntuples, nfields, 4, 1)));
}
primary_sysid = PQgetvalue(res, 0, 0);
*primary_tli = pg_atoi(PQgetvalue(res, 0, 1), 4, 0);

4
src/bin/pg_basebackup/pg_basebackup.c
View File

@ -1644,11 +1644,11 @@ BaseBackup(void)
progname, "IDENTIFY_SYSTEM", PQerrorMessage(conn));
disconnect_and_exit(1);
}
if (PQntuples(res) != 1 || PQnfields(res) < 3)
if (PQntuples(res) != 1 || PQnfields(res) < 4)
{
fprintf(stderr,
_("%s: could not identify system: got %d rows and %d fields, expected %d rows and %d or more fields\n"),
progname, PQntuples(res), PQnfields(res), 1, 3);
progname, PQntuples(res), PQnfields(res), 1, 4);
disconnect_and_exit(1);
}
sysidentifier = pg_strdup(PQgetvalue(res, 0, 0));

4
src/bin/pg_basebackup/pg_receivexlog.c
View File

@ -290,11 +290,11 @@ StreamLog(void)
progname, "IDENTIFY_SYSTEM", PQerrorMessage(conn));
disconnect_and_exit(1);
}
if (PQntuples(res) != 1 || PQnfields(res) < 3)
if (PQntuples(res) != 1 || PQnfields(res) < 4)
{
fprintf(stderr,
_("%s: could not identify system: got %d rows and %d fields, expected %d rows and %d or more fields\n"),
progname, PQntuples(res), PQnfields(res), 1, 3);
progname, PQntuples(res), PQnfields(res), 1, 4);
disconnect_and_exit(1);
}
servertli = atoi(PQgetvalue(res, 0, 1));

4
src/bin/pg_basebackup/receivelog.c
View File

@ -499,11 +499,11 @@ ReceiveXlogStream(PGconn *conn, XLogRecPtr startpos, uint32 timeline,
PQclear(res);
return false;
}
if (PQntuples(res) != 1 || PQnfields(res) < 3)
if (PQntuples(res) != 1 || PQnfields(res) < 4)
{
fprintf(stderr,
_("%s: could not identify system: got %d rows and %d fields, expected %d rows and %d or more fields\n"),
progname, PQntuples(res), PQnfields(res), 1, 3);
progname, PQntuples(res), PQnfields(res), 1, 4);
PQclear(res);
return false;
}