3 * Rebuild recent changes table
6 * @addtogroup MaintenanceArchive
10 function rebuildRecentChangesTable()
12 $sql = "DROP TABLE IF EXISTS recentchanges";
15 $sql = "CREATE TABLE recentchanges (
16 rc_timestamp varchar(14) binary NOT NULL default '',
17 rc_cur_time varchar(14) binary NOT NULL default '',
18 rc_user int(10) unsigned NOT NULL default '0',
19 rc_user_text varchar(255) binary NOT NULL default '',
20 rc_namespace tinyint(3) unsigned NOT NULL default '0',
21 rc_title varchar(255) binary NOT NULL default '',
22 rc_comment varchar(255) binary NOT NULL default '',
23 rc_minor tinyint(3) unsigned NOT NULL default '0',
24 rc_new tinyint(3) unsigned NOT NULL default '0',
25 rc_cur_id int(10) unsigned NOT NULL default '0',
26 rc_this_oldid int(10) unsigned NOT NULL default '0',
27 rc_last_oldid int(10) unsigned NOT NULL default '0',
28 INDEX rc_cur_id (rc_cur_id),
29 INDEX rc_cur_time (rc_cur_time),
30 INDEX rc_timestamp (rc_timestamp),
31 INDEX rc_namespace (rc_namespace),
32 INDEX rc_title (rc_title)
33 ) TYPE=MyISAM PACK_KEYS=1;";
36 print( "Loading from CUR table...\n" );
38 $sql = "INSERT INTO recentchanges (rc_timestamp,rc_cur_time,rc_user," .
39 "rc_user_text,rc_namespace,rc_title,rc_comment,rc_minor,rc_new," .
40 "rc_cur_id,rc_this_oldid,rc_last_oldid) SELECT cur_timestamp," .
41 "cur_timestamp,cur_user,cur_user_text,cur_namespace,cur_title," .
42 "cur_comment,cur_minor_edit,cur_is_new,cur_id,0,0 FROM cur " .
43 "ORDER BY cur_timestamp DESC LIMIT 5000";
46 print( "Loading from OLD table...\n" );
48 $sql = "INSERT INTO recentchanges (rc_timestamp,rc_cur_time,rc_user," .
49 "rc_user_text,rc_namespace,rc_title,rc_comment,rc_minor,rc_new," .
50 "rc_cur_id,rc_this_oldid,rc_last_oldid) SELECT old_timestamp,''," .
51 "old_user,old_user_text,old_namespace,old_title,old_comment," .
52 "old_minor_edit,0,0,old_id,0 FROM old ORDER BY old_timestamp " .
56 $sql = "SELECT rc_timestamp FROM recentchanges " .
57 "ORDER BY rc_timestamp DESC LIMIT 5000,1";
58 $res = wfQuery( $sql );
59 $obj = wfFetchObject( $res );
60 $ts = $obj->rc_timestamp;
62 $sql = "DELETE FROM recentchanges WHERE rc_timestamp < '{$ts}'";
65 rebuildRecentChangesTablePass2();
68 function rebuildRecentChangesTablePass2()
70 $ns = $id = $count = 0;
73 print( "Updating links...\n" );
75 $sql = "SELECT rc_namespace,rc_title,rc_timestamp FROM recentchanges " .
76 "ORDER BY rc_namespace,rc_title,rc_timestamp DESC";
77 $res = wfQuery( $sql );
79 while ( $obj = wfFetchObject( $res ) ) {
80 if ( ! ( $ns == $obj->rc_namespace &&
81 0 == strcmp( $title, wfStrencode( $obj->rc_title ) ) ) ) {
83 $ns = $obj->rc_namespace;
84 $title = wfStrencode( $obj->rc_title );
86 $sql = "SELECT cur_id,cur_timestamp FROM cur WHERE " .
87 "cur_namespace={$ns} AND cur_title='{$title}'";
88 $res2 = wfQuery( $sql );
89 $obj2 = wfFetchObject( $res2 );
92 $ct = $obj2->cur_timestamp;
94 $sql = "SELECT old_id FROM old WHERE old_namespace={$ns} " .
95 "AND old_title='{$title}' AND old_timestamp < '" .
96 "{$obj->rc_timestamp}' ORDER BY old_timestamp DESC LIMIT 1";
97 $res2 = wfQuery( $sql );
99 if ( 0 != wfNumRows( $res2 ) ) {
100 $obj2 = wfFetchObject( $res2 );
102 $sql = "UPDATE recentchanges SET rc_cur_id={$id},rc_cur_time=" .
103 "'{$ct}',rc_last_oldid={$obj2->old_id} WHERE " .
104 "rc_namespace={$ns} AND rc_title='{$title}' AND " .
105 "rc_timestamp='{$obj->rc_timestamp}'";
108 $sql = "UPDATE recentchanges SET rc_cur_id={$id},rc_cur_time=" .
109 "'{$ct}' WHERE rc_namespace={$ns} AND rc_title='{$title}' " .
110 "AND rc_timestamp='{$obj->rc_timestamp}'";
114 if ( 0 == ( ++$count % 500 ) ) {
115 printf( "%d records processed.\n", $count );