Update expense for product category (non-inventory type)

migrations/000079_add_purchase_category_to_expense_items.down.sql

@@ -0,0 +1,2 @@
+DROP INDEX IF EXISTS idx_expense_items_purchase_category_id;
+ALTER TABLE expense_items DROP COLUMN IF EXISTS purchase_category_id;

migrations/000079_add_purchase_category_to_expense_items.up.sql

@@ -0,0 +1,5 @@
+ALTER TABLE expense_items
+ADD COLUMN IF NOT EXISTS purchase_category_id UUID REFERENCES purchase_categories(id) ON DELETE RESTRICT;
+
+CREATE INDEX IF NOT EXISTS idx_expense_items_purchase_category_id
+ON expense_items(purchase_category_id);