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[autoinstallsdev/mediawiki.git] / maintenance / sqlite / archives / patch-templatelinks-fix-pk.sql

diff --git a/maintenance/sqlite/archives/patch-templatelinks-fix-pk.sql b/maintenance/sqlite/archives/patch-templatelinks-fix-pk.sql
new file mode 100644 (file)
index 0000000..5f09f60
--- /dev/null
+++ b/maintenance/sqlite/archives/patch-templatelinks-fix-pk.sql
@@ -0,0 +1,27 @@
+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);