Alan Woodward created LUCENE-8477:
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Summary: Improve handling of inner disjunctions in intervals
Key: LUCENE-8477
URL: https://issues.apache.org/jira/browse/LUCENE-8477
Project: Lucene - Core
Issue Type: New Feature
Reporter: Alan Woodward
The current implementation of the disjunction interval produced by
{{Intervals.or}} is a direct implementation of the OR operator from the Vigna
paper. This produces minimal intervals, meaning that (a) is preferred over (a
b), and (b) also over (a b). This has advantages when it comes to counting
intervals for scoring, but also has drawbacks when it comes to matching. For
example, a phrase query for ((a OR (a b)) NEAR (c)) will not match the document
(a b c), because (a) will be preferred over (a b), and (a c) does not match.
This ticket is to discuss the best way of dealing with disjunctions.
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