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Re:Comdb2 – Bloomberg's distributed RDBMS under Apache 2 by alexjscotti on Saturday June 10, 2017 @04:44AM (#14526641)
So. We did a few things better than the industry to this day. HA is a spectrum. Transparent masking of all failures in any state of arbitary SQL transaction is on the far right side of that spectrum.

To directly answer your question: go look at where 'replication' was on rdbms 14 years ago. PostgreSQL? MySQL?

Re:Comdb2 – Bloomberg's distributed RDBMS under Apache 2 by ericpearl on Saturday June 10, 2017 @10:15AM (#14527401)
14 years ago Sybase had strong replication. Sybase was wall street's darling for a long time starting in the late 80's.