Hello i would like to know if not determining a max size value for a character varying's fields decrease the perfomance (perhaps size of stockage ? or something else ?) If not it is a good way to not specify a max size value ? If it has an importance is it possible to have a general environnment variable saying to postgres to automatically truncate fields which postgres have to insert or update with a length superior at the max length. Sorry for my bad english... Lot of thanks
