exec_query

# File activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb, line 136
        def exec_query(sql, name = 'SQL', binds = [])
          log(sql, name, binds) do
            result = without_prepared_statement?(binds) ? exec_no_cache(sql, binds) :
                                                          exec_cache(sql, binds)

            types = {}
            fields = result.fields
            fields.each_with_index do |fname, i|
              ftype = result.ftype i
              fmod  = result.fmod i
              types[fname] = OID::TYPE_MAP.fetch(ftype, fmod) { |oid, mod|
                warn "unknown OID: #{fname}(#{oid}) (#{sql})"
                OID::Identity.new
              }
            end

            ret = ActiveRecord::Result.new(fields, result.values, types)
            result.clear
            return ret
          end
        end