About a year ago Vitess merged in support for what we call VReplication. ( https://vitess.io/docs/reference/features/vreplication/ https://vitess.io/docs/refere

About a year ago Vitess merged in support for what we call VReplication. ( https://vitess.io/docs/reference/features/vreplication/ https://vitess.io/docs/reference/features/vreplication/ ) The initial demo was a custom Materialized view that did calculations and rollup's on data in realish time ( it uses the MySQL binlog ). Right now the limiting factor for us calling is true Materalized View's is that configuring them is done out of band using the Vitess Control plane, but soon we will be merging in the features to allow standard DDL to configure and manage them!