[LUCENE-5127] FixedGapTermsIndex should use monotonic compression

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.0, 6.0
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Robert Muir
• Created: 20/Jul/13 04:03
• Updated: 28/Aug/22 13:50
• Resolved: 29/Jul/13 17:48

Description

for the addresses in the big in-memory byte[] and disk blocks, we could save a good deal of RAM here.

I think this codec just never got upgraded when we added these new packed improvements, but it might be interesting to try to use for the terms data of sorted/sortedset DV implementations.

patch works, but has nocommits and currently ignores the divisor. The annoying problem there being that we have the shared interface with "get(int)" for PackedInts.Mutable/Reader, but no equivalent base class for monotonics get(long)...

Still its enough that we could benchmark/compare for now.

Issue Links

• is related to: SOLR-6560 Solr example file has outdated termIndexInterval entry