[LUCENE-9737] Flexible configuration for DocValue compressions

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 9.0
• Component/s: core/codecs
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Jaison.Bi
• Created: 07/Feb/21 06:43
• Updated: 28/Aug/22 16:14

Description

LUCENE-9211 added compression for Binary DocValues.

LUCENE-9663 added compression for Terms Dict from SortedSet/Sorted DocValues.

LUCENE-9378 made Binary DocValues compression configurable, it introduced two modes for DocValues(Similar with the two modes from Lucene87StoredFieldsFormat): 

• BEST_SPEED
• BEST_COMPRESSION

It's simple to use...so Terms-dict compression shares the same configuration.

But some users may only want to try Terms Dict compression, since Binary DocValue compression may cause performance reduction..

So we need to make configuration flexible. 

Issue Links

• is blocked by: LUCENE-9663 Adding compression to terms dict from SortedSet/Sorted DocValues
• links to: GitHub Pull Request #2412