Always insert *ALL* fields on INSERT

    table foo (
        c_foo  integer,
        foo    char (2)
        );

    insert into foo (c_foo) values (1);

    resulted in passing *only* c_foo. When using CSV, that resulted in

    c_foo,foo
    1

    instead of

    c_foo,foo
    1,

    note the trailing ,
Always insert *ALL* fields on INSERT in Nano