[LUCENE-4129] add CodecHeader to .frq and .prx

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0-ALPHA
• Fix Version/s: 4.0-ALPHA, 6.0
• Lucene Fields: New
• Assignee: Robert Muir
• Reporter: Robert Muir
• Created: 11/Jun/12 11:01
• Updated: 28/Aug/22 13:19
• Resolved: 11/Jun/12 16:21

Description

We did this for all other files, but not .frq/.prx.

Currently the postings writer only records itself in the blocktree terms dictionary, which is fine, but thats really documenting the .tim itself, that it is "Blocktree with Lucene40Postings metadata".

I think we should put headers in .frq/.prx as well: e.g. it could detect file jumbling.