Problem with using UUID as a primary key in MySQL

The article on PlanetScale's blog discusses an important topic regarding the use of UUID primary keys in MySQL databases. One of the main issues highlighted is that UUIDs are significantly larger than standard auto-incrementing integers, which can lead to performance bottlenecks, especially concerning indexing and data insertion operations. The author elaborates on how UUIDs can negatively affect database performance when dealing with large datasets. Examples are provided to encourage users to consider alternatives, such as sequences or integer numbers, which can offer better performance and fewer complications. Additionally, the author urges developers to carefully contemplate their choice of primary key strategy before designing a database system, aiming to avoid future pitfalls related to performance and data management.