replaced value_type_of, too
replaced value_type_of, too

volka/sqlpp11,happybits/sqlpp11,happybits/sqlpp11,rbock/sqlpp11,happybits/sqlpp11,sergeken/sqlpp11,volka/sqlpp11,volka/sqlpp11,happybits/sqlpp11,rettichschnidi/sqlpp11,rbock/sqlpp11,sergeken/sqlpp11,rettichschnidi/sqlpp11,rettichschnidi/sqlpp11,sergeken/sqlpp11,sergeken/sqlpp11,rbock/sqlpp11,volka/sqlpp11,rettichschnidi/sqlpp11,rbock/sqlpp11