--- /dev/null
+DROP TABLE IF EXISTS /*_*/tag_summary_tmp;
+
+CREATE TABLE /*$wgDBprefix*/tag_summary_tmp (
+ ts_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
+ ts_rc_id int NULL,
+ ts_log_id int NULL,
+ ts_rev_id int NULL,
+ ts_tags blob NOT NULL
+);
+
+INSERT OR IGNORE INTO /*_*/tag_summary_tmp (
+ ts_rc_id, ts_log_id, ts_rev_id, ts_tags )
+ SELECT
+ ts_rc_id, ts_log_id, ts_rev_id, ts_tags
+ FROM /*_*/tag_summary;
+
+DROP TABLE /*_*/tag_summary;
+
+ALTER TABLE /*_*/tag_summary_tmp RENAME TO /*_*/tag_summary;
+
+CREATE UNIQUE INDEX /*i*/tag_summary_rc_id ON /*_*/tag_summary (ts_rc_id);
+CREATE UNIQUE INDEX /*i*/tag_summary_log_id ON /*_*/tag_summary (ts_log_id);
+CREATE UNIQUE INDEX /*i*/tag_summary_rev_id ON /*_*/tag_summary (ts_rev_id);