Single-Shard OLTP First: The Most Important Design Choice in SPQR
Why routing one OLTP query to one PostgreSQL shard is the design choice that makes SPQR's horizontal scaling practical.
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SPQR BLOG
PostgreSQL Sharding Notes
Practical articles about SPQR architecture, routing, operations, and PostgreSQL sharding.
SPQR Architecture in 4 Minutes: Router, Coordinator, Shards
A short mental model for SPQR: how routers, coordinator, QDB, and PostgreSQL shards fit together.
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