+CREATE TABLE /*_*/templatelinks_tmp (
+ -- Key to the page_id of the page containing the link.
+ tl_from int unsigned NOT NULL default 0,
+ -- Namespace for this page
+ tl_from_namespace int NOT NULL default 0,
+
+ -- Key to page_namespace/page_title of the target page.
+ -- The target page may or may not exist, and due to renames
+ -- and deletions may refer to different page records as time
+ -- goes by.
+ tl_namespace int NOT NULL default 0,
+ tl_title varchar(255) binary NOT NULL default '',
+ PRIMARY KEY (tl_from,tl_namespace,tl_title)
+) /*$wgDBTableOptions*/;
+
+INSERT INTO /*_*/templatelinks_tmp
+ SELECT * FROM /*_*/templatelinks;
+
+DROP TABLE /*_*/templatelinks;
+
+ALTER TABLE /*_*/templatelinks_tmp RENAME TO /*_*/templatelinks;
+
+-- Reverse index, for Special:Whatlinkshere
+CREATE INDEX /*i*/tl_namespace ON /*_*/templatelinks (tl_namespace,tl_title,tl_from);
+
+-- Index for Special:Whatlinkshere with namespace filter
+CREATE INDEX /*i*/tl_backlinks_namespace ON /*_*/templatelinks (tl_from_namespace,tl_namespace,tl_title,tl_from);