1. What is returned by the PostgreSQL AGE(timestamp1, timestamp2) function?
- An integer count of total years.
- An INTERVAL representing years, months, and days elapsed between them.
- A boolean flag indicating if timestamp1 is older.
- A formatted text string.
Hint: The AGE function subtracts its second argument from its first, returning a detailed INTERVAL representation (e.g. '4 years 3 months 2 days').