[captrb]

I'd forgotten the bit in here about the storage hierarchy, especially optical disks and immutable storage. I'm finding the modern "big data" stack with blob stores, immutable storage, and neutral formats (Parquet, Avro) to be useful, especially when it can be seamlessly read from a DBMS instance with its own optimized storage (Redshift, Vertica, and others can do this). However, I miss Postgresql's types and planner. From afar, it seems like Postgresql would be a perfect fit into this tiered ecosystem. Having a "hot set" in Postgresql and the "cold set" in a blob store for cost optimization in particular... as long as PG could use parallel query to maximize throughput over the higher-latency connection.