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Type:
New Feature
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Status: Closed
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: None
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Fix Version/s: 7.4
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Component/s: None
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Labels:None
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Lucene Fields:New
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.
