On Fri, Jan 11, 2013 at 6:51 PM, rurpy@yahoo.com <rurpy@yahoo.com> wrote:

[Sorry for the duplicated text in the previous post, please ignore
that one in favor of this one]

There is a common dialect of CSV, often used in database
applications [*1], that distinguishes between an empty
(quoted) string,

How many DBMS have this dialect? e.g. MySQL want \N for null values, in other databases this is not even possible. Anyway I think that should be implemented because it may have different uses.

[*2] I don't really care what the attribute name is; I chose
"nulls" as a trial balloon because I wanted to avoid something
with "none" in it to avoid confusion with QUOTE_NONE.