[LUCENE-569] NearSpans skipTo bug

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Component/s: core/search
• Lucene Fields: Patch Available
• Assignee: Chris M. Hostetter
• Reporter: Chris M. Hostetter
• Created: 13/May/06 08:31
• Updated: 28/Aug/22 11:27
• Resolved: 27/Oct/06 22:04

Description

NearSpans appears to have a bug in skipTo that causes it to skip over some matching documents completely. I discovered this bug while investigating problems with SpanWeight.explain, but as far as I can tell the Bug is not specific to Explanations ... it seems like it could potentially result in incorrect matching in some situations where a SpanNearQuery is nested in another query such thatskipTo will be used ... I tried to create a high level test case to exploit the bug when searching, but i could not. TestCase exploiting the class using NearSpan and SpanScorer will follow...

Issue Links

• is related to: LUCENE-557 search vs explain - score discrepancies