Deep Dive into Postgres Write-Ahead Logs
(artie.com)
Write-ahead logs are one of four components required for logical replication. They are used to ensure data durability, meaning your data is consistent and protected against data loss. Even if a server machine fails, write-ahead logs ensure your changes persist.
Write-ahead logs are one of four components required for logical replication. They are used to ensure data durability, meaning your data is consistent and protected against data loss. Even if a server machine fails, write-ahead logs ensure your changes persist.