[Xapian-discuss] Simulating Fields

[Olly Betts]

On Mon, May 04, 2009 at 12:26:43AM -0400, Luis Alberto Zarrabeitia Gomez wrote:
> Now, what would you recommend to match the document titled "sex and the city",
> but not "sex and the city 2: the return"?

I'm not sure I understand why the sequel isn't a relevant result (albeit
one which you would want to rank lower than the exact match).  Since I
don't really seem to understand the aim, I suspect I may be missing the
point of what you're trying to do.

> Adding a value to the document and
> then checking it for the documents in the result set?

That would avoid the length limit of a term.

But I think I'd try just setting a percentage cut-off at 100%.  With the
default BM25 parameters, that will only give you the shortest document
which matches all the terms in the query (or multiple documents if there
is a tie, such as the case of two documents with the same title).

That would return "sex and the city" for a query for 'sex city' (unless
there was a better match), but I'd think that was desirable.  You can
always vet the matching document to check if it was exact or not if you
want.

Cheers,
    Olly