Contents of /bin/MasterInit

#!/usr/bin/perl
# MasterInit
# Vadim Mikheev, (c) 2000, PostgreSQL Inc.

eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}'
    & eval 'exec perl -S $0 $argv:q'
    if 0;

use Pg;
use Getopt::Long;

$lib = '/usr/lib/postgresql/lib/rserv.so';

$| = 1;

$result = GetOptions("debug!", "verbose!", "help",
                     "host=s", "user=s", "password=s", "lib=s");

my $debug = $opt_debug || 0;
my $verbose = $opt_verbose || 0;

if (defined($opt_help) || (scalar(@ARGV) < 1)) {
    print "Usage: $0 --host=name --user=name --password=string --lib=libpath masterdb\n";
    exit ((scalar(@ARGV) < 1)? 1:0);
}

my $master = $ARGV[0] || "master";

my $minfo = "dbname=$master";
$minfo = "$minfo host=$opt_host" if (defined($opt_host));
$minfo = "$minfo user=$opt_user" if (defined($opt_user));
$minfo = "$minfo password=$opt_password" if (defined($opt_password));

$lib = $opt_lib if (defined($opt_lib));

sub RollbackAndQuit {
    $conn = shift @_;

    print STDERR "Error in query: ", $conn->errorMessage;
    $conn->exec("ROLLBACK");
    exit (-1);
}

my $conn = Pg::connectdb($minfo);
if ($conn->status != PGRES_CONNECTION_OK) {
    print STDERR "Failed opening $minfo\n";
    exit 1;
}

my $result = $conn->exec("BEGIN");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

$result = $conn->exec("set transaction isolation level serializable");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

# List of slave servers
$result = $conn->exec("create table _RSERV_SERVERS_" .
                      " (server serial primary key, host text not ".
                      "null, port int4 default 5432, dbase text not ".
                      "null, unique(host,port,dbase))");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

# List of replicated tables
$result = $conn->exec("create table _RSERV_TABLES_" .
                      " (tname name not null, cname name not null, ".
                      "reloid oid primary key, key int4 not null)");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

## should always call MasterDelTable
#$result = $conn->exec("CREATE RULE _rserv_deltrig_ AS ON delete to _RSERV_TABLES_ DO (DELETE FROM pg_trigger WHERE tgname='_rserv_trigger_t_' AND tgrelid=(SELECT oid FROM pg_class WHERE relname=old.tname);UPDATE pg_class SET reltriggers=reltriggers-1 WHERE relname=old.tname)");
#RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

# Bookkeeping log for row replication   
$result = $conn->exec("create table _RSERV_LOG_" .
                      " (reloid oid REFERENCES _RSERV_TABLES_(reloid) ON ".
                      "DELETE CASCADE ON UPDATE CASCADE, logid int4 not ".
                      "null, logtime timestamp not null, insert smallint, ".
                      "update smallint, delete smallint, key text, ".
                      "CONSTRAINT only_one CHECK (insert+update+delete=1))");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

# This is to speedup lookup of deleted tuples
$result = $conn->exec("create index _RSERV_LOG_INDX_DLT_ID_ on _RSERV_LOG_ ".
                      "(delete, logid) WHERE delete = 1");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

# This is to speedup lookup of updated tuples
$result = $conn->exec("create index _RSERV_LOG_INDX_UPD_ID_ on _RSERV_LOG_ ".
                      "(update, logid) WHERE update = 1");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

# This is to speedup lookup of insert tuples
$result = $conn->exec("create index _RSERV_LOG_INDX_INS_ID_ on _RSERV_LOG_ ".
                      "(insert, logid) WHERE insert = 1");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

# This is to speedup cleanup
$result = $conn->exec("create index _RSERV_LOG_INDX_TM_ID_ on _RSERV_LOG_ ".
                      "(logtime, logid)");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

# This is to speedup trigger 
$result = $conn->exec("create index _RSERV_LOG_INDX_REL_KEY_ on _RSERV_LOG_ ".
                      "(reloid, key)");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

# View to help managing _rserv_log_ table
$result = $conn->exec("CREATE VIEW _RSERV_HUMAN_LOG_ AS SELECT log.logid, ".
                      "tab.tname AS table_name, tab.cname AS column_name, ".
                      "log.key AS column_value, log.insert, log.update, ".
                      "log.delete, log.logtime FROM _RSERV_LOG_ log, ".
                      "_RSERV_TABLES_ tab WHERE tab.reloid ".
                      "= log.reloid ORDER BY log.logtime");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

# View to help logging daily transactions
$result = $conn->exec("CREATE VIEW _RSERV_DAILY_LOG_ AS ".
                      "SELECT count(*) AS \"# records\", ".
                      "to_char(_rserv_log_.logtime, 'YYYY-MM-DD') ".
                      "AS day FROM _rserv_log_ GROUP BY day");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

# Sync point for each slave server
$result = $conn->exec("create table _RSERV_SYNC_ " .
                      "(server int REFERENCES _RSERV_SERVERS_(server) ".
                      "ON DELETE CASCADE ON UPDATE CASCADE, syncid int4 ".
                      "not null, synctime timestamp, status int4 not null,".
                      " minid int4 not null, maxid int4 not null, active text)");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

$result = $conn->exec("create index _RSERV_SYNC_INDX_SRV_ID_ on _RSERV_SYNC_ ".
                      "(server, syncid)");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

# Sync point reference numbers
$result = $conn->exec("create sequence _rserv_sync_seq_");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

$result = $conn->exec("CREATE FUNCTION _rserv_log_() RETURNS opaque" .
                      " AS '$lib' LANGUAGE 'c'");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

$result = $conn->exec("CREATE FUNCTION _rserv_sync_(int4) RETURNS int4" .
                      " AS '$lib' LANGUAGE 'c'");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

$result = $conn->exec("CREATE FUNCTION _rserv_debug_(int4) RETURNS int4" .
                      " AS '$lib' LANGUAGE 'c'");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

$result = $conn->exec("COMMIT");
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);

exit (0);
1	#!/usr/bin/perl
2	# MasterInit
3	# Vadim Mikheev, (c) 2000, PostgreSQL Inc.
4
5	eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}'
6	& eval 'exec perl -S $0 $argv:q'
7	if 0;
8
9	use Pg;
10	use Getopt::Long;
11
12	$lib = '/usr/lib/postgresql/lib/rserv.so';
13
14	$\| = 1;
15
16	$result = GetOptions("debug!", "verbose!", "help",
17	"host=s", "user=s", "password=s", "lib=s");
18
19	my $debug = $opt_debug \|\| 0;
20	my $verbose = $opt_verbose \|\| 0;
21
22	if (defined($opt_help) \|\| (scalar(@ARGV) < 1)) {
23	print "Usage: $0 --host=name --user=name --password=string --lib=libpath masterdb\n";
24	exit ((scalar(@ARGV) < 1)? 1:0);
25	}
26
27	my $master = $ARGV[0] \|\| "master";
28
29	my $minfo = "dbname=$master";
30	$minfo = "$minfo host=$opt_host" if (defined($opt_host));
31	$minfo = "$minfo user=$opt_user" if (defined($opt_user));
32	$minfo = "$minfo password=$opt_password" if (defined($opt_password));
33
34	$lib = $opt_lib if (defined($opt_lib));
35
36	sub RollbackAndQuit {
37	$conn = shift @_;
38
39	print STDERR "Error in query: ", $conn->errorMessage;
40	$conn->exec("ROLLBACK");
41	exit (-1);
42	}
43
44	my $conn = Pg::connectdb($minfo);
45	if ($conn->status != PGRES_CONNECTION_OK) {
46	print STDERR "Failed opening $minfo\n";
47	exit 1;
48	}
49
50	my $result = $conn->exec("BEGIN");
51	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
52
53	$result = $conn->exec("set transaction isolation level serializable");
54	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
55
56	# List of slave servers
57	$result = $conn->exec("create table _RSERV_SERVERS_" .
58	" (server serial primary key, host text not ".
59	"null, port int4 default 5432, dbase text not ".
60	"null, unique(host,port,dbase))");
61	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
62
63	# List of replicated tables
64	$result = $conn->exec("create table _RSERV_TABLES_" .
65	" (tname name not null, cname name not null, ".
66	"reloid oid primary key, key int4 not null)");
67	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
68
69	## should always call MasterDelTable
70	#$result = $conn->exec("CREATE RULE _rserv_deltrig_ AS ON delete to _RSERV_TABLES_ DO (DELETE FROM pg_trigger WHERE tgname='_rserv_trigger_t_' AND tgrelid=(SELECT oid FROM pg_class WHERE relname=old.tname);UPDATE pg_class SET reltriggers=reltriggers-1 WHERE relname=old.tname)");
71	#RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
72
73	# Bookkeeping log for row replication
74	$result = $conn->exec("create table _RSERV_LOG_" .
75	" (reloid oid REFERENCES _RSERV_TABLES_(reloid) ON ".
76	"DELETE CASCADE ON UPDATE CASCADE, logid int4 not ".
77	"null, logtime timestamp not null, insert smallint, ".
78	"update smallint, delete smallint, key text, ".
79	"CONSTRAINT only_one CHECK (insert+update+delete=1))");
80	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
81
82	# This is to speedup lookup of deleted tuples
83	$result = $conn->exec("create index _RSERV_LOG_INDX_DLT_ID_ on _RSERV_LOG_ ".
84	"(delete, logid) WHERE delete = 1");
85	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
86
87	# This is to speedup lookup of updated tuples
88	$result = $conn->exec("create index _RSERV_LOG_INDX_UPD_ID_ on _RSERV_LOG_ ".
89	"(update, logid) WHERE update = 1");
90	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
91
92	# This is to speedup lookup of insert tuples
93	$result = $conn->exec("create index _RSERV_LOG_INDX_INS_ID_ on _RSERV_LOG_ ".
94	"(insert, logid) WHERE insert = 1");
95	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
96
97	# This is to speedup cleanup
98	$result = $conn->exec("create index _RSERV_LOG_INDX_TM_ID_ on _RSERV_LOG_ ".
99	"(logtime, logid)");
100	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
101
102	# This is to speedup trigger
103	$result = $conn->exec("create index _RSERV_LOG_INDX_REL_KEY_ on _RSERV_LOG_ ".
104	"(reloid, key)");
105	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
106
107	# View to help managing _rserv_log_ table
108	$result = $conn->exec("CREATE VIEW _RSERV_HUMAN_LOG_ AS SELECT log.logid, ".
109	"tab.tname AS table_name, tab.cname AS column_name, ".
110	"log.key AS column_value, log.insert, log.update, ".
111	"log.delete, log.logtime FROM _RSERV_LOG_ log, ".
112	"_RSERV_TABLES_ tab WHERE tab.reloid ".
113	"= log.reloid ORDER BY log.logtime");
114	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
115
116	# View to help logging daily transactions
117	$result = $conn->exec("CREATE VIEW _RSERV_DAILY_LOG_ AS ".
118	"SELECT count(*) AS \"# records\", ".
119	"to_char(_rserv_log_.logtime, 'YYYY-MM-DD') ".
120	"AS day FROM _rserv_log_ GROUP BY day");
121	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
122
123	# Sync point for each slave server
124	$result = $conn->exec("create table _RSERV_SYNC_ " .
125	"(server int REFERENCES _RSERV_SERVERS_(server) ".
126	"ON DELETE CASCADE ON UPDATE CASCADE, syncid int4 ".
127	"not null, synctime timestamp, status int4 not null,".
128	" minid int4 not null, maxid int4 not null, active text)");
129	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
130
131	$result = $conn->exec("create index _RSERV_SYNC_INDX_SRV_ID_ on _RSERV_SYNC_ ".
132	"(server, syncid)");
133	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
134
135	# Sync point reference numbers
136	$result = $conn->exec("create sequence _rserv_sync_seq_");
137	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
138
139	$result = $conn->exec("CREATE FUNCTION _rserv_log_() RETURNS opaque" .
140	" AS '$lib' LANGUAGE 'c'");
141	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
142
143	$result = $conn->exec("CREATE FUNCTION _rserv_sync_(int4) RETURNS int4" .
144	" AS '$lib' LANGUAGE 'c'");
145	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
146
147	$result = $conn->exec("CREATE FUNCTION _rserv_debug_(int4) RETURNS int4" .
148	" AS '$lib' LANGUAGE 'c'");
149	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
150
151	$result = $conn->exec("COMMIT");
152	RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
153
154	exit (0);