While implementing ClickHouse for query executions statistics storage in Percona Monitoring and Management (PMM),  we were faced with a question of choosing the data type for metrics we store. It came down to this question: what is the difference in performance and space usage between Uint32, Uint64, Float32, and Float64 column types? To test this, [&]

https://www.percona.com/blog/2019/02/15/clickhouse-performance-uint32-vs-uint64-vs-float32-vs-float64/