Christoph Goller created LUCENE-7398:
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Summary: Nested Span Queries are buggy
Key: LUCENE-7398
URL: https://issues.apache.org/jira/browse/LUCENE-7398
Project: Lucene - Core
Issue Type: Bug
Components: core/search
Affects Versions: 5.5, 6.x
Reporter: Christoph Goller
Priority: Critical
Example for a nested SpanQuery that is not working:
Document: Human Genome Organization , HUGO , is trying to coordinate gene
mapping research worldwide.
Query: spanNear([body:coordinate, spanOr([spanNear([body:gene, body:mapping],
0, true), body:gene]), body:research], 0, true)
The query should match "coordinate gene mapping research" as well as
"coordinate gene research". It does not match "coordinate gene mapping
research" with Lucene 5.5 or 6.1, it did however match with Lucene 4.10.4. It
probably stopped working with the changes on SpanQueries in 5.3. I will attach
a unit test that shows the problem.
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