1 files changed, 27 insertions, 0 deletions
diff --git a/www/wiki/maintenance/sqlite/archives/patch-pagelinks-fix-pk.sql b/www/wiki/maintenance/sqlite/archives/patch-pagelinks-fix-pk.sql
new file mode 100644
index 00000000..40fd51fa
--- /dev/null
+++ b/www/wiki/maintenance/sqlite/archives/patch-pagelinks-fix-pk.sql
@@ -0,0 +1,27 @@
+CREATE TABLE /*_*/pagelinks_tmp (
+  -- Key to the page_id of the page containing the link.
+  pl_from int unsigned NOT NULL default 0,
+  -- Namespace for this page
+  pl_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.
+  pl_namespace int NOT NULL default 0,
+  pl_title varchar(255) binary NOT NULL default '',
+  PRIMARY KEY (pl_from,pl_namespace,pl_title)
+) /*$wgDBTableOptions*/;
+
+INSERT INTO /*_*/pagelinks_tmp (pl_from, pl_from_namespace, pl_namespace, pl_title)
+	SELECT pl_from, pl_from_namespace, pl_namespace, pl_title FROM /*_*/pagelinks;
+
+DROP TABLE /*_*/pagelinks;
+
+ALTER TABLE /*_*/pagelinks_tmp RENAME TO /*_*/pagelinks;
+
+-- Reverse index, for Special:Whatlinkshere
+CREATE INDEX /*i*/pl_namespace ON /*_*/pagelinks (pl_namespace,pl_title,pl_from);
+
+-- Index for Special:Whatlinkshere with namespace filter
+CREATE INDEX /*i*/pl_backlinks_namespace ON /*_*/pagelinks (pl_from_namespace,pl_namespace,pl_title,pl_from);