On Mon, Apr 12, 2004 at 10:30:22 -0400, Bruce Momjian <[EMAIL PROTECTED]> wrote: > > It is my understanding that \N is a valid column value (no backslash > escape in CSV, right?), so we can't use it for NULL. > The only thing I can think of is for NULL to be: > > ,, > > (no quotes) and a zero-length string to be: > > ,"", > > How do most applications handle those two cases? If they accept either, > can we use that so we can read our own CSV files without losing the NULL > specification?
I think the above are going to be treated as equvialent by most CSV parsers. There doesn't seem to be a standard for CSV. From what I found describing it, there isn't any feature for distinguishing NULLs from empty strings. So whatever gets done is going to be application specific. ---------------------------(end of broadcast)--------------------------- TIP 8: explain analyze is your friend
