MVCC, WAL, vacuum, and replication slots under sustained delete load - and how to delete billions of rows without your database noticing Most "how to delete a lot of rows" articles stop at "batch it and delete children before parents. " That advice is correct, it's table stakes, and everyone alre...
Source: [Dev.to](https://dev.to/shanthan_kumar_3aa868cb94/the-deep-mechanics-of-online-bulk-deletion-in-postgresql-3dhb)