We present a way to use an atomic, blocking table swap in the Facebook Online-Schema-Change solution, as well as in a rumored, other Online-Schema-rumored-Change solution. Update: also a caveat. Quick recap (really quick) pt-online-schema-change and facebook-osc are two popular online-schema-change solutions for MySQL. They both use triggers, but in different ways. While the Percona tool … Continue reading Solving the Facebook-OSC non-atomic table swap problem