Postgres-R! I knew about Postgres-R, but i thought it was a research project which had never really gone anywhere. I am highly intrigued to learn that it is still in play. From what i remember, there were some terrifically clever ideas about multi-master databases at the heart of it. I don't think there's anything else quite like it in the open source world.
Postgres-R bits have not made their way into Postgres-XL, but some parts of Postgres-XC have. Some XC code is merged in to make future merging into Postgres-XL easier, even parts that are not used.
Some parts of Postgres-R are in the TransLattice Elastic Database (TED), but that is a proprietary closed source product, sorry. (I work for TransLattice, who also open sourced Postgres-XL.)
Ah, i see. It's a shame that no descendant of Postgres-R is open source, but i'm still pleased to hear that there is one, even if it's proprietary. Thanks for the information.
