# File lib/active_record/connection_adapters/nulldb_adapter.rb, line 91
  def create_table(table_name, options = {})
    table_definition = ActiveRecord::ConnectionAdapters::TableDefinition.new(self)
    unless options[:id] == false
      table_definition.primary_key(options[:primary_key] || "id")
    end

    yield table_definition

    @tables[table_name] = table_definition
  end