[META] OpenSearch sparse index issue list

[animodak7]

Please describe the end goal of this project

Enable sparse index in OpenSearch. Lucene10 has introduced sparse index which uses skip list on top of doc values. We see improvement in performance with SlowDVQuery with enabled skipList compared to DVQuery.

Supporting References

• [Feature Request] Use lucene sparse index in opensearch #17710

Issues

Indexing changes

• [SparseIndex] Modify FieldMappers to enable SkipList #17965
• [SparseIndex] Set default user experience sparse index #17966

Search changes

• [SparseIndex] Support for Skiplist in aggregation queries #17964
• Evaluate use cases for skiplist in KeywordField mapper.

Related component

No response

[andrross]

Catch All Triage - 1