NewSQL that survives a node dying while still speaking SQL. How Raft-replicated ranges deliver horizontal scale with strong consistency, the Google Spanner lineage the whole category descends from, multi-region survival goals and the latency tax they impose, online schema changes that don't lock the table, an honest head-to-head of CockroachDB, TiDB, and YugabyteDB — and the unglamorous truth that boring single-node Postgres still wins for most applications.
Cockroachdb
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Distributed SQL: CockroachDB, TiDB, and YugabyteDB