@jaykreps This diagram appears in a Rich Hickey talk on Datomic. Seems like a log-oriented architecture, to me!pic.twitter.com/qKhKpK6PaM
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@jaykreps @amontalenti The log is not a btree - used for durability, not query. Separate indexes combine memory with batch-updated storage.
@richhickey That's right. In @jaykreps post on Logs, he shows data is a set of timestamped facts in raw form. Datomic uses this notion, too.
@richhickey @jaykreps Most DBs combine store and indexing, but in Log-oriented architecture you can tease these apart, and simplify both.
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