Where Does My INSERT Go? A Logical Replication Story | POSETTE: An Event for Postgres 2026
A POSETTE 2026 talk explains how a Postgres INSERT flows through WAL, logical decoding, and replication slots to a subscriber.
“We start from the insert, the time the insert begins on the publisher, makes its way to the shared buffer, eventually to the WAL.”
A conference talk walks through the internals of PostgreSQL logical replication, tracing a single INSERT from the publisher's WAL through logical decoding to the subscriber. It is a database engineering deep-dive with no meaningful AI industry signal.