1. Which PostgreSQL extension is used for managing table partitioning?
2. In PostgreSQL, what is the autovacuum process responsible for?
3. Which PostgreSQL extension provides support for full-text search?
4. What is the purpose of the pg_roles system catalog in PostgreSQL?
5. Which PostgreSQL authentication method uses the operating system user account for authentication?
6. What is the purpose of the pg_xlog directory in PostgreSQL?
7. Which PostgreSQL system catalog contains information about database indexes?
8. In PostgreSQL, what is the purpose of the pg_restore utility?
9. Which PostgreSQL command is used to create a new schema?
10. What is the purpose of the pg_cron extension in PostgreSQL?
11. In PostgreSQL, what is a "TOAST" table?
12. Which PostgreSQL data type is used to store date and time information with time zone?
13. Which PostgreSQL function is used to generate a universally unique identifier (UUID)?
14. What is the purpose of the pg_sequence system catalog in PostgreSQL?
15. Which PostgreSQL function is used to convert a value to a different data type?