Database Index Strategy Planner

Design an optimal indexing strategy for this database:

{{schema_and_queries}}

Data volume and growth: {{volume_metrics}}

Create:
1. Index recommendations with column selection rationale
2. Covering index opportunities for top queries
3. Composite index ordering (filter, sort, retrieve)
4. Partitioning strategy for table size and query isolation
5. Index maintenance overhead estimates
6. Hot spot analysis and index conflict resolution
7. Execution plan before/after comparisons
8. Monitoring metrics for index effectiveness

Provide CREATE INDEX statements and partitioning DDL.