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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 (tl_from, tl_from_namespace, tl_namespace, tl_title)
SELECT tl_from, tl_from_namespace, tl_namespace, tl_title 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);
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