3 * Rebuild recent changes table
7 * @subpackage MaintenanceArchive
11 function rebuildRecentChangesTable()
13 $sql = "DROP TABLE IF EXISTS recentchanges";
16 $sql = "CREATE TABLE recentchanges (
17 rc_timestamp varchar(14) binary NOT NULL default '',
18 rc_cur_time varchar(14) binary NOT NULL default '',
19 rc_user int(10) unsigned NOT NULL default '0',
20 rc_user_text varchar(255) binary NOT NULL default '',
21 rc_namespace tinyint(3) unsigned NOT NULL default '0',
22 rc_title varchar(255) binary NOT NULL default '',
23 rc_comment varchar(255) binary NOT NULL default '',
24 rc_minor tinyint(3) unsigned NOT NULL default '0',
25 rc_new tinyint(3) unsigned NOT NULL default '0',
26 rc_cur_id int(10) unsigned NOT NULL default '0',
27 rc_this_oldid int(10) unsigned NOT NULL default '0',
28 rc_last_oldid int(10) unsigned NOT NULL default '0',
29 INDEX rc_cur_id (rc_cur_id),
30 INDEX rc_cur_time (rc_cur_time),
31 INDEX rc_timestamp (rc_timestamp),
32 INDEX rc_namespace (rc_namespace),
33 INDEX rc_title (rc_title)
34 ) TYPE=MyISAM PACK_KEYS=1;";
37 print( "Loading from CUR table...\n" );
39 $sql = "INSERT INTO recentchanges (rc_timestamp,rc_cur_time,rc_user," .
40 "rc_user_text,rc_namespace,rc_title,rc_comment,rc_minor,rc_new," .
41 "rc_cur_id,rc_this_oldid,rc_last_oldid) SELECT cur_timestamp," .
42 "cur_timestamp,cur_user,cur_user_text,cur_namespace,cur_title," .
43 "cur_comment,cur_minor_edit,cur_is_new,cur_id,0,0 FROM cur " .
44 "ORDER BY cur_timestamp DESC LIMIT 5000";
47 print( "Loading from OLD table...\n" );
49 $sql = "INSERT INTO recentchanges (rc_timestamp,rc_cur_time,rc_user," .
50 "rc_user_text,rc_namespace,rc_title,rc_comment,rc_minor,rc_new," .
51 "rc_cur_id,rc_this_oldid,rc_last_oldid) SELECT old_timestamp,''," .
52 "old_user,old_user_text,old_namespace,old_title,old_comment," .
53 "old_minor_edit,0,0,old_id,0 FROM old ORDER BY old_timestamp " .
57 $sql = "SELECT rc_timestamp FROM recentchanges " .
58 "ORDER BY rc_timestamp DESC LIMIT 5000,1";
59 $res = wfQuery( $sql );
60 $obj = wfFetchObject( $res );
61 $ts = $obj->rc_timestamp;
63 $sql = "DELETE FROM recentchanges WHERE rc_timestamp < '{$ts}'";
66 rebuildRecentChangesTablePass2();
69 function rebuildRecentChangesTablePass2()
71 $ns = $id = $count = 0;
74 print( "Updating links...\n" );
76 $sql = "SELECT rc_namespace,rc_title,rc_timestamp FROM recentchanges " .
77 "ORDER BY rc_namespace,rc_title,rc_timestamp DESC";
78 $res = wfQuery( $sql );
80 while ( $obj = wfFetchObject( $res ) ) {
81 if ( ! ( $ns == $obj->rc_namespace &&
82 0 == strcmp( $title, wfStrencode( $obj->rc_title ) ) ) ) {
84 $ns = $obj->rc_namespace;
85 $title = wfStrencode( $obj->rc_title );
87 $sql = "SELECT cur_id,cur_timestamp FROM cur WHERE " .
88 "cur_namespace={$ns} AND cur_title='{$title}'";
89 $res2 = wfQuery( $sql );
90 $obj2 = wfFetchObject( $res2 );
93 $ct = $obj2->cur_timestamp;
95 $sql = "SELECT old_id FROM old WHERE old_namespace={$ns} " .
96 "AND old_title='{$title}' AND old_timestamp < '" .
97 "{$obj->rc_timestamp}' ORDER BY old_timestamp DESC LIMIT 1";
98 $res2 = wfQuery( $sql );
100 if ( 0 != wfNumRows( $res2 ) ) {
101 $obj2 = wfFetchObject( $res2 );
103 $sql = "UPDATE recentchanges SET rc_cur_id={$id},rc_cur_time=" .
104 "'{$ct}',rc_last_oldid={$obj2->old_id} WHERE " .
105 "rc_namespace={$ns} AND rc_title='{$title}' AND " .
106 "rc_timestamp='{$obj->rc_timestamp}'";
109 $sql = "UPDATE recentchanges SET rc_cur_id={$id},rc_cur_time=" .
110 "'{$ct}' WHERE rc_namespace={$ns} AND rc_title='{$title}' " .
111 "AND rc_timestamp='{$obj->rc_timestamp}'";
115 if ( 0 == ( ++$count % 500 ) ) {
116 printf( "%d records processed.\n", $count );