Should have dug out the link earlier... The relevant README is https://github.com/postgres/postgres/blob/master/src/backend/utils/mmgr/README https://github.com

Should have dug out the link earlier... The relevant README is https://github.com/postgres/postgres/blob/master/src/backend/utils/mmgr/README https://github.com/postgres/postgres/blob/master/src/backend...