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diff --git a/www/wiki/maintenance/mssql/archives/patch-slots.sql b/www/wiki/maintenance/mssql/archives/patch-slots.sql
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+--
+-- Slots represent an n:m relation between revisions and content objects.
+-- A content object can have a specific "role" in one or more revisions.
+-- Each revision can have multiple content objects, each having a different role.
+--
+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 CONSTRAINT FK_slots_slot_role FOREIGN KEY REFERENCES slot_roles(role_id),
+
+  -- reference to content_id
+  slot_content_id bigint unsigned NOT NULL CONSTRAINT FK_slots_content_id FOREIGN KEY REFERENCES content(content_id),
+
+  -- 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,
+
+  CONSTRAINT PK_slots PRIMARY KEY (slot_revision_id, slot_role_id)
+);
+
+-- 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);