2 -- Track links that do exist
3 -- l_from and l_to key to cur_id
5 DROP TABLE IF EXISTS /*$wgDBprefix*/links;
6 CREATE TABLE /*$wgDBprefix*/links (
7 -- Key to the page_id of the page containing the link.
8 l_from int unsigned NOT NULL default '0',
10 -- Key to the page_id of the link target.
11 -- An unfortunate consequence of this is that rename
12 -- operations require changing the links entries for
13 -- all links to the moved page.
14 l_to int unsigned NOT NULL default '0',
16 UNIQUE KEY l_from(l_from,l_to),
19 ) /*$wgDBTableOptions*/;
22 -- Track links to pages that don't yet exist.
23 -- bl_from keys to cur_id
24 -- bl_to is a text link (namespace:title)
26 DROP TABLE IF EXISTS /*$wgDBprefix*/brokenlinks;
27 CREATE TABLE /*$wgDBprefix*/brokenlinks (
28 -- Key to the page_id of the page containing the link.
29 bl_from int unsigned NOT NULL default '0',
31 -- Text of the target page title ("namesapce:title").
32 -- Unfortunately this doesn't split the namespace index
33 -- key and therefore can't easily be joined to anything.
34 bl_to varchar(255) binary NOT NULL default '',
35 UNIQUE KEY bl_from(bl_from,bl_to),
38 ) /*$wgDBTableOptions*/;
41 -- Track links to images *used inline*
42 -- il_from keys to cur_id, il_to keys to image_name.
43 -- We don't distinguish live from broken links.
45 DROP TABLE IF EXISTS /*$wgDBprefix*/imagelinks;
46 CREATE TABLE /*$wgDBprefix*/imagelinks (
47 -- Key to page_id of the page containing the image / media link.
48 il_from int unsigned NOT NULL default '0',
50 -- Filename of target image.
51 -- This is also the page_title of the file's description page;
52 -- all such pages are in namespace 6 (NS_FILE).
53 il_to varchar(255) binary NOT NULL default '',
55 UNIQUE KEY il_from(il_from,il_to),
58 ) /*$wgDBTableOptions*/;
61 -- Stores (possibly gzipped) serialized objects with
62 -- cache arrays to reduce database load slurping up
63 -- from links and brokenlinks.
65 DROP TABLE IF EXISTS /*$wgDBprefix*/linkscc;
66 CREATE TABLE /*$wgDBprefix*/linkscc (
67 lcc_pageid INT UNSIGNED NOT NULL UNIQUE KEY,
68 lcc_cacheobj MEDIUMBLOB NOT NULL
70 ) /*$wgDBTableOptions*/;