+
+CREATE TABLE core_locking (
+ id int(11) NOT NULL AUTO_INCREMENT,
+ PRIMARY KEY (id)
+);
+ALTER TABLE core_locking ADD COLUMN on_table varchar(64) NOT NULL DEFAULT '';
+ALTER TABLE core_locking ADD COLUMN on_id int(11) NOT NULL DEFAULT 0;
+ALTER TABLE core_locking ADD COLUMN person_id int(11) NOT NULL DEFAULT 0;
+ALTER TABLE core_locking ADD COLUMN created datetime ;
+
+alter table core_locking ADD INDEX lookup(on_table, on_id, person_id, created);
+-- oops... - wrong name of pid.
+alter table core_locking change column `int` id int(11) auto_increment not null;
\ No newline at end of file