10.2.1.3 Index Merge Optimization| dev.mysql.com
Database queries are all about filtering. Whether you’re finding rows with a particular name, within a price-range, or those created within a time-window. Trouble, however, ensues for most databases when you have many filters and none of them| Simon Eskildsen
Save everything to one place to overcome content overload, search instantly, and highlight like a pro.| Readwise Reader
Index Merges vs Composite Indexes in Postgres and MySQL| sirupsen.com