Current File : //www/varak.net/wiki.varak.net/maintenance/archives/patch-linktables.sql
--
-- Track links that do exist
-- l_from and l_to key to cur_id
--
DROP TABLE IF EXISTS /*$wgDBprefix*/links;
CREATE TABLE /*$wgDBprefix*/links (
-- Key to the page_id of the page containing the link.
l_from int unsigned NOT NULL default '0',
-- Key to the page_id of the link target.
-- An unfortunate consequence of this is that rename
-- operations require changing the links entries for
-- all links to the moved page.
l_to int unsigned NOT NULL default '0',
UNIQUE KEY l_from(l_from,l_to),
KEY (l_to)
) /*$wgDBTableOptions*/;
--
-- Track links to pages that don't yet exist.
-- bl_from keys to cur_id
-- bl_to is a text link (namespace:title)
--
DROP TABLE IF EXISTS /*$wgDBprefix*/brokenlinks;
CREATE TABLE /*$wgDBprefix*/brokenlinks (
-- Key to the page_id of the page containing the link.
bl_from int unsigned NOT NULL default '0',
-- Text of the target page title ("namesapce:title").
-- Unfortunately this doesn't split the namespace index
-- key and therefore can't easily be joined to anything.
bl_to varchar(255) binary NOT NULL default '',
UNIQUE KEY bl_from(bl_from,bl_to),
KEY (bl_to)
) /*$wgDBTableOptions*/;
--
-- Track links to images *used inline*
-- il_from keys to cur_id, il_to keys to image_name.
-- We don't distinguish live from broken links.
--
DROP TABLE IF EXISTS /*$wgDBprefix*/imagelinks;
CREATE TABLE /*$wgDBprefix*/imagelinks (
-- Key to page_id of the page containing the image / media link.
il_from int unsigned NOT NULL default '0',
-- Filename of target image.
-- This is also the page_title of the file's description page;
-- all such pages are in namespace 6 (NS_FILE).
il_to varchar(255) binary NOT NULL default '',
UNIQUE KEY il_from(il_from,il_to),
KEY (il_to)
) /*$wgDBTableOptions*/;
--
-- Stores (possibly gzipped) serialized objects with
-- cache arrays to reduce database load slurping up
-- from links and brokenlinks.
--
DROP TABLE IF EXISTS /*$wgDBprefix*/linkscc;
CREATE TABLE /*$wgDBprefix*/linkscc (
lcc_pageid INT UNSIGNED NOT NULL UNIQUE KEY,
lcc_cacheobj MEDIUMBLOB NOT NULL
) /*$wgDBTableOptions*/;
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