Materialized Views in ClickHouse SQL OLTP vs OLAP SQL is a language for querying databases. It is a flexible way to write or read data while processing it into any desired form. PostgreSQL (Postgres) is a versatile SQL database, known for its reliability and used for various applications. It's an Online Transaction Processing (OLTP) database, providing real-time, exact results. ClickHouse, on the other hand, specializes in Online Analytical Processing (OLAP), making it better for fast, complex d...