Different optimizations strategies done internally in MariaDB
| Title | Description |
|---|---|
| Binary Log Group Commit and InnoDB Flushing Performance | Improvement for group commit for InnoDB transactions with the binary log enabled |
| Fair Choice Between Range and Index_merge Optimizations | index_merge is a method used by the optimizer to retrieve rows from a singl... |
| Improvements to ORDER BY Optimization | Several Improvements to the ORDER BY Optimizer in Version 10.1 of MariaDB. |
| Multi Range Read Optimization | An optimization for improving performance of IO-bound queries which scan many rows. |
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https://mariadb.com/kb/en/mariadb-internal-optimizations/