[LUCENE-2261] configurable MultiTermQuery TopTermsScoringBooleanRewrite pq size

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 4.0-ALPHA
• Component/s: core/search
• Lucene Fields: New
• Assignee: Robert Muir
• Reporter: Robert Muir
• Created: 11/Feb/10 16:32
• Updated: 10/May/13 10:43
• Resolved: 21/Feb/10 07:28

Description

MultiTermQuery has a TopTermsScoringBooleanRewrite, that uses a priority queue to expand the query to the top-N terms.

currently N is hardcoded at BooleanQuery.getMaxClauseCount(), but it would be nice to be able to set this for top-N MultiTermQueries: e.g. expand a fuzzy query to at most only the 50 closest terms.

at a glance it seems one way would be to expose TopTermsScoringBooleanRewrite (it is private right now) and add a ctor to it, so a MultiTermQuery can instantiate one with its own limit.

Issue Links

• is depended upon by: LUCENE-2089 explore using automaton for fuzzyquery