Post-Upgrade Tasks: Statistics Quiz

Home › PostgreSQL DBA › Post-Upgrade Tasks: Statistics

✅ Postgres Database Administration – Post-Upgrade Tasks: Statistics

20 questions · 15 min timer · Explanations included · Free

What is the effect of running VACUUM FULL on a PostgreSQL database?

It only removes dead tuples without locking the tables.

It updates the statistics for the query planner.

It rebuilds all indexes in the database.

It locks the tables and reclaims space by rewriting the entire table.

None

VACUUM FULL locks the tables and rewrites them to reclaim space, which can be disruptive in a production environment.

What is the purpose of the pg_freespacemap module in PostgreSQL?

To perform database backups

To manage user permissions

To optimize query execution plans

To monitor free space in tables and indexes

None

The pg_freespacemap module provides functions to examine the free space map, helping to identify potential bloat issues.

Loading questions...

Click Submit to see your final score!

Time's up

Scroll to Top