Package: postgresql-12-pgfincore Source: pgfincore Version: 1.3.1-1.pgdg20.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 80 Depends: libc6 (>= 2.4), postgresql-12, postgresql-12-jit-llvm (>= 10) Homepage: http://villemain.org/projects/pgfincore Priority: optional Section: database Filename: pool/main/p/pgfincore/postgresql-12-pgfincore_1.3.1-1.pgdg20.04+1_amd64.deb Size: 30860 SHA256: 7907679e3996e2e2a2e939f87197524ea9687482a73eb0a1642ea1f833b27455 SHA1: 8ffc650aa4fb43e08b266363e9f6e6fa7bc008ae MD5sum: 45eb2f289c8a965f7d7b88dbd9c6e728 Description: set of PostgreSQL functions to manage blocks in memory Those functions let you know which and how many disk block from a relation are in the page cache of the operating system, and eventually write the result to a file. Then using this file, it is possible to restore the page cache state for each block of the relation.