disable_referential_integrity

# File activerecord/lib/active_record/connection_adapters/postgresql/referential_integrity.rb, line 9
        def disable_referential_integrity #:nodoc:
          if supports_disable_referential_integrity?
            begin
              execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} DISABLE TRIGGER ALL" }.join(";"))
            rescue
              execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} DISABLE TRIGGER USER" }.join(";"))
            end
          end
          yield
        ensure
          if supports_disable_referential_integrity?
            begin
              execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} ENABLE TRIGGER ALL" }.join(";"))
            rescue
              execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} ENABLE TRIGGER USER" }.join(";"))
            end
          end
        end