Would field:"" works in your case? Best, On Mon, May 18, 2015 at 8:56 PM Shawn Heisey <apa...@elyograg.org> wrote:
> Can I search for the empty string? This is distinct from searching for > documents that don't have a certain fieldat all, which I can already do > with a clause of "*:* -field:[*TO *]"in my query. > > Thanks, > Shawn > >