Over two years of focused join engineering, ClickHouse became 26× faster on the TPC-H SF100 join-heavy workload. Here’s how parallel hash joins, runtime filters, lazy column replication, and smarter join planning got us there.


Over two years of focused join engineering, ClickHouse became 26× faster on the TPC-H SF100 join-heavy workload. Here’s how parallel hash joins, runtime filters, lazy column replication, and smarter join planning got us there.