VACUUM VACUUM — garbage-collect and optionally analyze a database Synopsis VACUUM [ ( option [, ...] ) ] [ table_and_columns …| PostgreSQL Documentation
25.1. Routine Vacuuming # 25.1.1. Vacuuming Basics 25.1.2. Recovering Disk Space 25.1.3. Updating Planner Statistics 25.1.4. Updating the Visibility Map 25.1.5. …| 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
28.4. Progress Reporting # 28.4.1. ANALYZE Progress Reporting 28.4.2. CLUSTER Progress Reporting 28.4.3. COPY Progress Reporting 28.4.4. CREATE INDEX Progress Reporting …| PostgreSQL Documentation
ALTER TABLE ALTER TABLE — change the definition of a table Synopsis ALTER TABLE [ IF EXISTS ] [ ONLY …| PostgreSQL Documentation
EXPLAIN EXPLAIN — show the execution plan of a statement Synopsis EXPLAIN [ ( option [, ...] ) ] statement …| PostgreSQL Documentation