Does anyone have a good way to formulate the query in terms of performance
as well as ordering of retrieved documents for the following query?
Query: "field1:t1 t2 t3 t4 AND field2:t5 t6 t7"
I want to achieve the following
* The document which matches the query exactly in both the fields gets rank
1
* The documents with different orders of the query terms get the subsequent
ranks depending on their edit distance
This can be achieved by phrase queries ANDed together.
Modified Query: BooleanQuery(PhraseQuery("field1", "t1 t2 t3 t4" SLOPE:m)
AND PhraseQuery("field2", "t5 t6 t7", SLOPE:n))
However I also want to retrieve those documents (in order) where one or more
of the terms is missing from either of the fields. i.e,
Rank 1: All terms exist in both fields with certain slope factor
Rank 2: One term missing from one of the field
field1:t1 t2 t3 t4 AND field2:t5 t6
field2:t1 t2 t3 t4 AND field2:t6 t7
field2:t1 t2 t3 t4 AND field2:t5 t7
...
...
Rank 3: Two terms missing from either of the field
...
Rank n: Only one term exists in both field1 and field 2
Thanks,
Rajesh Munavalli
