Sounds interesting to test it out. I only played with 5.10 recently on empty string search,it seems that *field:""* (double quotes) works, but not *field:''* ( single quotes )
Best, -lianyi "Unity of knowing and doing" On Mon, May 18, 2015 at 9:21 PM, Shawn Heisey <elyog...@elyograg.org> wrote: > On 5/18/2015 7:16 PM, Lianyi Han wrote: > > 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 > > I haven't tried it, because right now my indexing code barfs on an empty > string, so there are no empty strings in the index. I'll need to > manually put a document in the index and try that. > > A possible further complication: The field is whitespace tokenized and > multivalued, where one value may be the empty string but other values > could be non-empty strings. > > Thanks, > Shawn > >
