diff --git a/db/migrate/20190730024112_add_index_to_user.rb b/db/migrate/20190730024112_add_index_to_user.rb
new file mode 100644
index 000000000..fa198cffa
--- /dev/null
+++ b/db/migrate/20190730024112_add_index_to_user.rb
@@ -0,0 +1,7 @@
+class AddIndexToUser < ActiveRecord::Migration[5.2]
+  def change
+    # add_index :users, :login, unique: true
+    # add_index :users, :mail, unique: true
+    # add_index :users, :phone, unique: true
+  end
+end