Perhaps the most straight-forward way would be to index a known unique value
for each document that would have had a null entry. Conceptually, when a
field would be null, index the value "nothinghere". Then you can just search
on documents where the value is equal to "nothinghere".
Alternatively,
Hi,
I have some question regarding the search. In a document we can have
several fields but not all fields have the value in all documents i.e.
some fields in a document can have null or empty string. But how to
search for a null field value in a document using the IndexSearcher? Any
idea wil
