[Phase 9] Index Usage Optimization

[ravituringworks]

Phase 9: Query Optimization & Performance

Overview

Implement automatic index selection and optimization hints for improved query performance.

Features to Implement

• Automatic index selection based on query patterns
• Index recommendation system
• Query optimization hints (FORCE INDEX, USE INDEX, IGNORE INDEX)
• Index usage statistics and monitoring
• Composite index optimization
• Index intersection and union strategies

Technical Requirements

• Integration with existing index management system
• Cost-based index selection algorithms
• Index cardinality estimation
• Query pattern analysis
• Index usage tracking and metrics

Success Criteria

• Automatic index selection for optimal query performance
• Index recommendations for slow queries
• Support for manual index hints in SQL queries
• Index usage metrics and reporting
• Improved query performance through better index utilization

Dependencies

• Requires Query Planner implementation
• Integration with existing DDL index creation
• Vector index support (IVFFLAT, HNSW)

Estimated Effort

3-4 weeks