# MariaDB Internal Optimizations

- [Fair Choice Between Range and Index\_merge Optimizations](/docs/server/ha-and-performance/optimization-and-tuning/mariadb-internal-optimizations/fair-choice-between-range-and-index_merge-optimizations.md)
- [Multi Range Read Optimization](/docs/server/ha-and-performance/optimization-and-tuning/mariadb-internal-optimizations/multi-range-read-optimization.md)