The Wonderful World of WAL | POSETTE: An Event for Postgres 2026
Postgres' write-ahead log underpins crash recovery, point-in-time recovery, and physical and logical replication.
“Write-ahead log is basically the change-log for the database.”
A technical conference talk by Bruce Momjian explains how the Postgres write-ahead log works and the database features built on top of it. It is a database engineering deep-dive with no meaningful AI industry signal.