update expense item name

migrations/000072_add_expense_name_to_expenses.up.sql

@@ -1,2 +1,21 @@
-ALTER TABLE expenses ADD COLUMN expense_name VARCHAR(255) NOT NULL DEFAULT '';
-CREATE INDEX idx_expenses_expense_name ON expenses(expense_name);
+ALTER TABLE expense_items ADD COLUMN IF NOT EXISTS item VARCHAR(255) NOT NULL DEFAULT '';
+
+DO $$
+BEGIN
+    IF EXISTS (
+        SELECT 1
+        FROM information_schema.columns
+        WHERE table_name = 'expenses'
+          AND column_name = 'expense_name'
+    ) THEN
+        UPDATE expense_items ei
+        SET item = e.expense_name
+        FROM expenses e
+        WHERE ei.expense_id = e.id
+          AND COALESCE(ei.item, '') = '';
+    END IF;
+END $$;
+
+DROP INDEX IF EXISTS idx_expenses_expense_name;
+ALTER TABLE expenses DROP COLUMN IF EXISTS expense_name;
+CREATE INDEX IF NOT EXISTS idx_expense_items_item ON expense_items(item);