The article discusses advanced sorting techniques in DuckDB that enhance the performance of selective queries. It highlights the importance of efficient data retrieval and presents methods to optimize sorting for improved query execution speed. The innovations presented aim to benefit users dealing with large datasets and complex queries.

The N+1 query problem arises when multiple database queries are triggered in a loop, leading to performance issues as data grows. By adopting efficient querying strategies, such as using JOINs or IN clauses, developers can significantly reduce unnecessary database traffic and improve application performance.