maintenance/sqlite/archives/patch-imagelinks-fix-pk.sql

   1 CREATE TABLE /*_*/imagelinks_tmp (
   2   -- Key to page_id of the page containing the image / media link.
   3   il_from int unsigned NOT NULL default 0,
   4   -- Namespace for this page
   5   il_from_namespace int NOT NULL default 0,
   6
   7   -- Filename of target image.
   8   -- This is also the page_title of the file's description page;
   9   -- all such pages are in namespace 6 (NS_FILE).
  10   il_to varchar(255) binary NOT NULL default '',
  11   PRIMARY KEY (il_from,il_to)
  12 ) /*$wgDBTableOptions*/;
  13
  14 INSERT INTO /*_*/imagelinks_tmp
  15         SELECT * FROM /*_*/imagelinks;
  16
  17 DROP TABLE /*_*/imagelinks;
  18
  19 ALTER TABLE /*_*/imagelinks_tmp RENAME TO /*_*/imagelinks;
  20
  21 -- Reverse index, for Special:Whatlinkshere and file description page local usage
  22 CREATE INDEX /*i*/il_to ON /*_*/imagelinks (il_to,il_from);
  23
  24 -- Index for Special:Whatlinkshere with namespace filter
  25 CREATE INDEX /*i*/il_backlinks_namespace ON /*_*/imagelinks (il_from_namespace,il_to,il_from);