: TermDocs termDocs = reader.termDocs();
: termDocs.seek(new Term("<relevant field name here>", ""));
: while (termDocs.next()) {
: bits.set(termDocs.doc());
: }
:
: I *think* (and I'm remembering things folks wrote, haven't done this myself)
: that the empty string for the Term matches all terms. If not, you might have
not quite ... a token containing the empty string matches documents that
contain that token -- not common for simple indexes, but it has it's uses.
what you want to do is create a bitset for every document that has a value
in that field, and then invert the BitSet.
-Hoss
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