DB2 BLU: https://researcher.watson.ibm.com/researcher/files/us-ipandi...
Wildfire "v0", the "failed" HTAP project: https://researcher.watson.ibm.com/researcher/files/us-ytian/...
Wildfire "v1", the shared-nothing architecture over cloud storage (EventStore 1.0?): http://cidrdb.org/cidr2017/papers/p123-barber-cidr17.pdf
DB2 EventStore (EventStore 2.0?): http://www.vldb.org/pvldb/vol13/p3299-garcia-arellano.pdf