--- /dev/null
+-- @tag: inventory_parts_id_index
+-- @description: Index auf inventory parts_id, um schneller die Bestände eines Artikels in diversen Lagern zu berechnen
+-- @depends: release_3_5_4
+
+-- increase speed of queries for inventory information on one part, e.g.
+
+-- SELECT parts_id, warehouse_id, bin_id, sum(qty)
+-- FROM inventory
+-- WHERE parts_id = 1234
+-- GROUP BY parts_id, bin_id, warehouse_id;
+
+CREATE INDEX inventory_parts_id_idx ON inventory (parts_id);