Write-Path Maintenance— CREATE/DROP INDEX DDL kept consistent via a single MemGraph IndexObserver hook covering executor, WAL replay, and sync-engine paths
Query Planner Integration— Index-backed fast paths for single-property equality and range predicates
Full Index Type Coverage— Composite, fulltext, relationship-property, spatial-radius, and covering/index-only scans
Production Scale-Out— Disk-backed index stores, online ALTER INDEX REBUILD, non-blocking populate, replica convergence, snapshot v7 restart
IndexAdvisor— Slow-query attribution + suggestion engine with memory-budget recommendations
Documentation— Indexes guide and reference
Hammer UI— IndexAdvisor admin panel polish
Checks & Hardening— Phase 27 testing-gap closeout and open items