[LUCENE-3403] Term vectors missing after addIndexes + optimize

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 3.3
• Fix Version/s: 3.4, 4.0-ALPHA
• Component/s: core/index
• Lucene Fields: New, Patch Available
• Assignee: Shai Erera
• Reporter: Shai Erera
• Created: 26/Aug/11 06:35
• Updated: 28/Aug/22 12:56
• Resolved: 27/Aug/11 06:23

Description

I encountered a problem with addIndexes where term vectors disappeared following optimize(). I wrote a simple test case which demonstrates the problem. The bug appears with both addIndexes() versions, but does not appear if addDocument is called twice, committing changes in between.

I think I tracked the problem down to IndexWriter.mergeMiddle() – it sets term vectors before merger.merge() was called. In the addDocs case, merger.fieldInfos is already populated, while in the addIndexes case it is empty, hence fieldInfos.hasVectors returns false.

will post a patch shortly.