Currently IndexSearcher works by iterating over the Query, gathering docs into a Set for each Query node, and combining those Sets.
We want to move to an iterator based approach, similar to what PositionalIter currently does, but where query nodes form nodes in a tree of iterators working together to progressively find matches.
Currently
IndexSearcherworks by iterating over theQuery, gathering docs into aSetfor eachQuerynode, and combining thoseSets. We want to move to an iterator based approach, similar to whatPositionalItercurrently does, but where query nodes form nodes in a tree of iterators working together to progressively find matches.