POSTGRESQL DATABASE INTERVIEW QUESTIONS

What is a database index in PostgreSQL?

What are the different types of indexes available in PostgreSQL?

Why should you use indexes in PostgreSQL?

How does a B-tree index work in PostgreSQL?

What are the limitations of using hash indexes in PostgreSQL?

When would you use a GiST index in PostgreSQL?

Explain the concept of a covering index in PostgreSQL and its benefits.

What is the purpose of BRIN indexes in PostgreSQL, and when should they be used?

How can you monitor and maintain indexes in PostgreSQL to ensure optimal performance?

Discuss the impact of index bloat in PostgreSQL and strategies to mitigate it.