11.3. Multicolumn Indexes # An index can be defined on more than one column of a table. For example, if you …| PostgreSQL Documentation
20.7. Query Planning # 20.7.1. Planner Method Configuration 20.7.2. Planner Cost Constants 20.7.3. Genetic Query Optimizer 20.7.4. Other Planner Options 20.7.1. Planner …| PostgreSQL Documentation