The following documentation comment has been logged on the website: Page: https://www.postgresql.org/docs/12/storage-vm.html Description:
Currently the documentation lists the line below; `Each heap relation has a Visibility Map (VM) to keep track of which pages contain only tuples that are known to be visible to all active transactions;` Should it instead read like; `Each heap relation has a Visibility Map (VM) to keep track of only those pages that contain tuples known to be visible to all active transactions;` After reading through the documentation and reading the first line, I first thought that VM only kept track of pages that only had visible tuples. Instead my understanding is that it shows which pages have any visible tuples in them.
