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Hall of FameHironobu Suzuki20157 min readintro

The Internals of PostgreSQL

Read on interdb.jp

Summary

The Internals of PostgreSQL is a continuously updated, chapter‑based documentation covering PostgreSQL’s subsystems—from process architecture to replication—targeted at developers and DBAs. It serves as a comprehensive reference but the article itself offers little new technical detail.

  • The site provides a structured deep‑dive into PostgreSQL internals across 12 chapters, updated for versions up to 19‑beta.
  • It is maintained by Hironobu Suzuki, a long‑time PG community contributor, and is cited in academic papers.
  • Updates include new sections on asynchronous I/O, logical replication, and buffer management, reflecting recent PostgreSQL releases.

PostgreSQL engineers and DBAs looking for an authoritative, version‑aware reference on the database’s inner workings should be aware of this resource.

4/10
architecturedatabasespostgresdocumentation

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