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

   1 CREATE TABLE /*_*/pagelinks_tmp (
   2   -- Key to the page_id of the page containing the link.
   3   pl_from int unsigned NOT NULL default 0,
   4   -- Namespace for this page
   5   pl_from_namespace int NOT NULL default 0,
   6
   7   -- Key to page_namespace/page_title of the target page.
   8   -- The target page may or may not exist, and due to renames
   9   -- and deletions may refer to different page records as time
  10   -- goes by.
  11   pl_namespace int NOT NULL default 0,
  12   pl_title varchar(255) binary NOT NULL default '',
  13   PRIMARY KEY (pl_from,pl_namespace,pl_title)
  14 ) /*$wgDBTableOptions*/;
  15
  16 INSERT INTO /*_*/pagelinks_tmp
  17         SELECT * FROM /*_*/pagelinks;
  18
  19 DROP TABLE /*_*/pagelinks;
  20
  21 ALTER TABLE /*_*/pagelinks_tmp RENAME TO /*_*/pagelinks;
  22
  23 -- Reverse index, for Special:Whatlinkshere
  24 CREATE INDEX /*i*/pl_namespace ON /*_*/pagelinks (pl_namespace,pl_title,pl_from);
  25
  26 -- Index for Special:Whatlinkshere with namespace filter
  27 CREATE INDEX /*i*/pl_backlinks_namespace ON /*_*/pagelinks (pl_from_namespace,pl_namespace,pl_title,pl_from);