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https://issues.apache.org/jira/browse/LUCENE-8196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16423659#comment-16423659
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ASF subversion and git services commented on LUCENE-8196:
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Commit 974c03a6ca8eed3941e1414dd2ecb75132228d4f in lucene-solr's branch
refs/heads/branch_7x from [~romseygeek]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=974c03a ]
LUCENE-8196: Add IntervalQuery and IntervalsSource to the sandbox
> 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
> 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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