add `imported` column to status table to mark posts imported from a json dump

db/migrate/20190521003040_add_imported_to_statuses.rb

@@ -0,0 +1,5 @@
+class AddImportedToStatuses < ActiveRecord::Migration[5.2]
+  def change
+    add_column :statuses, :imported, :boolean
+  end
+end