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https://issues.apache.org/jira/browse/LUCENE-8196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16446939#comment-16446939
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Matt Weber commented on LUCENE-8196:
------------------------------------
[~romseygeek] This is great! How would we prevent matching at the same
interval? In {{TestIntervalQuery}}, I would expect this to pass but it matches
every doc with {{w3}}.
{code:java}
public void testUnorderedQueryNoSelfMatch() throws IOException {
Query q = new IntervalQuery(field, Intervals.maxwidth(2,
Intervals.unordered(Intervals.term("w3"), Intervals.term("w3"))));
checkHits(q, new int[]{1});
}
{code}
> Add IntervalQuery and IntervalsSource to expose minimum interval semantics
> across term fields
> ---------------------------------------------------------------------------------------------
>
> Key: LUCENE-8196
> URL: https://issues.apache.org/jira/browse/LUCENE-8196
> Project: Lucene - Core
> Issue Type: New Feature
> Reporter: Alan Woodward
> Assignee: Alan Woodward
> Priority: Major
> Fix For: 7.4
>
> Attachments: LUCENE-8196.patch, LUCENE-8196.patch, LUCENE-8196.patch,
> LUCENE-8196.patch, LUCENE-8196.patch
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> This ticket proposes an alternative implementation of the SpanQuery family
> that uses minimum-interval semantics from
> [http://vigna.di.unimi.it/ftp/papers/EfficientAlgorithmsMinimalIntervalSemantics.pdf]
> to implement positional queries across term-based fields. Rather than using
> TermQueries to construct the interval operators, as in LUCENE-2878 or the
> current Spans implementation, we instead use a new IntervalsSource object,
> which will produce IntervalIterators over a particular segment and field.
> These are constructed using various static helper methods, and can then be
> passed to a new IntervalQuery which will return documents that contain one or
> more intervals so defined.
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