disable_referential_integrity

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 393
      def disable_referential_integrity(&block) #:nodoc:
        if supports_disable_referential_integrity?() then
          execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} DISABLE TRIGGER ALL" }.join(";"))
        end
        yield
      ensure
        if supports_disable_referential_integrity?() then
          execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} ENABLE TRIGGER ALL" }.join(";"))
        end
      end