pg_verify_checksums verifies data checksums in a PostgreSQL database cluster.

Usage:
  pg_verify_checksums [OPTION]... [DATADIR]

Options:
 [-D, --pgdata=]DATADIR  data directory
  -v, --verbose          output verbose messages
  -r RELFILENODE         check only relation with specified relfilenode
  -V, --version          output version information, then exit
  -?, --help             show this help, then exit

If no data directory (DATADIR) is specified, the environment variable PGDATA
is used.

Report bugs to <pgsql-bugs@postgresql.org>.