collector

# File activerecord/lib/active_record/connection_adapters/abstract_adapter.rb, line 1190
        def collector
          if prepared_statements
            Arel::Collectors::Composite.new(
              Arel::Collectors::SQLString.new,
              Arel::Collectors::Bind.new,
            )
          else
            Arel::Collectors::SubstituteBinds.new(
              self,
              Arel::Collectors::SQLString.new,
            )
          end
        end