Couchbase Server 4.5.1 introduces a range of enhancements in N1QL, which are designed to improve functionality, usability, and performance for enterprise applications. One notable feature is the new query setting called "pretty," which enables or disables the pretty formatting of JSON query results. While pretty formatting makes JSON more human-readable, it increases the data size and resource consumption, so disabling it can significantly enhance performance, especially for large result sets. The update also extends dynamic object construction capabilities in N1QL, allowing both names and values of object fields to be arbitrary expressions, thereby enriching query results and flexibility. Additionally, the release includes a new array function, ARRAY_INTERSECT(), which returns the intersection of input arrays, adding to the tools available for data manipulation. These improvements aim to address critical customer issues and facilitate a smoother transition from RDBMS to Couchbase, with the version being production-ready and field-tested by partners and customers.