76. Design a Relational Database like PostgreSQL
A relational database like PostgreSQL: WAL and MVCC on one server, quorum replication and failover, then a sharded fleet.
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Pick a system. Work through the problem. Compare your approach.
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A relational database like PostgreSQL: WAL and MVCC on one server, quorum replication and failover, then a sharded fleet.
Every committed change in Aurora and DynamoDB, read from the log and delivered in order per row to search, caches, Redshift and an S3 lake.