lib/rubocop/cop/rails/bulk_change_table.rb in rubocop-rails-2.0.1 vs lib/rubocop/cop/rails/bulk_change_table.rb in rubocop-rails-2.1.0

@@ -127,10 +127,9 @@
           change_default
         ].freeze
 
         POSTGRESQL_COMBINABLE_ALTER_METHODS = %i[
           change_column_default
-          change_column_null
         ].freeze
 
         def on_def(node)
           return unless support_bulk_alter?
           return unless MIGRATION_METHODS.include?(node.method_name)