I understand that this Ledgerstore thing is just some tables and materialized views in a Docstore database which they already use for everything else. This see

I understand that this Ledgerstore thing is just some tables and materialized views in a Docstore database which they already use for everything else. This seems to be an in-house DynamoDB (sharded MySQL with Raft) which has been developed a long time ago, see: https://www.uber.com/en-US/blog/schemaless-sql-database/ https://www.uber.com/en-US/blog/schemaless-sql-database/ But maybe I'm totally wrong here because they also use or used Google Spanner: https://www.uber.com/en-US/blog/building-ubers-fulfillment-platform/ https://www.uber.com/en-US/blog/building-ubers-fulfillment-p...