pg_verify_checksums — verify data checksums in a PostgreSQL database cluster
pg_verify_checksums [option...] [[ -D | --pgdata ] datadir]
pg_verify_checksums verifies data checksums in a PostgreSQL cluster. The server must be shut down cleanly before running pg_verify_checksums. The exit status is zero if there are no checksum errors, otherwise nonzero.
The following command-line options are available:
-D directory--pgdata=directorySpecifies the directory where the database cluster is stored.
-v--verboseEnable verbose output. Lists all checked files.
-r relfilenodeOnly validate checksums in the relation with specified relfilenode.
-V--versionPrint the pg_verify_checksums version and exit.
-?--helpShow help about pg_verify_checksums command line arguments, and exit.
PGDATASpecifies the directory where the database cluster is stored; can be overridden using the -D option.