Home / System Designing / 08. Infrastructure Tooling / 02. Postgres Postgres¶ The chapters in this module, in reading order. # Chapter 00 Postgres — ELI5 01 MVCC, WAL, indexes — what Postgres actually does on every row 02 psql, schema, queries, EXPLAIN — Postgres in daily use 03 Vacuum, replication, pooling — Postgres in production