🔗 Designing partitioning you don't have to babysit

Partitioning can be a double-edged sword. When done improperly, it leads to operational headaches and poor performance. Ruslan Tolkachev addresses these issues by arguing against using created_at as a partition key. Instead, he suggests partitioning by primary key, leveraging the growth patterns of data without leaking the partition key into application code. Tolkachev illustrates common pitfalls, like partitions not pruned due to the absence of the partition key in queries. He emphasizes the importance of automatic management of partition boundaries, advocating for a service that can dynamically adjust to traffic patterns. This approach allows for query efficiency while sidestepping the errors of static partition management. Ultimately, the article delivers valuable insights into database architecture, encouraging practices that enhance performance without added operational burden.