+--
+-- Replace slot_inherited with slot_origin.
+--
+-- NOTE: There is no release that has slot_inherited. This is only needed to transition between
+-- snapshot versions of 1.30.
+--
+-- NOTE: No code that writes to the slots table was merge yet, the table is assumed to be empty.
+--
+BEGIN TRANSACTION;
+
+DROP TABLE /*_*/slots;
+
+CREATE TABLE /*_*/slots (
+
+ -- reference to rev_id
+ slot_revision_id bigint unsigned NOT NULL,
+
+ -- reference to role_id
+ slot_role_id smallint unsigned NOT NULL,
+
+ -- reference to content_id
+ slot_content_id bigint unsigned NOT NULL,
+
+ -- The revision ID of the revision that originated the slot's content.
+ -- To find revisions that changed slots, look for slot_origin = slot_revision_id.
+ slot_origin bigint unsigned NOT NULL,
+
+ PRIMARY KEY ( slot_revision_id, slot_role_id )
+) /*$wgDBTableOptions*/;
+
+-- Index for finding revisions that modified a specific slot
+CREATE INDEX /*i*/slot_revision_origin_role ON /*_*/slots (slot_revision_id, slot_origin, slot_role_id);
+
+COMMIT TRANSACTION;
\ No newline at end of file