vacuumdb cleans and analyzes a PostgreSQL database. Usage: vacuumdb [OPTION]... [DBNAME] Options: -a, --all vacuum all databases --buffer-usage-limit=SIZE size of ring buffer used for vacuum -d, --dbname=DBNAME database to vacuum --disable-page-skipping disable all page-skipping behavior -e, --echo show the commands being sent to the server -f, --full do full vacuuming -F, --freeze freeze row transaction information --force-index-cleanup always remove index entries that point to dead tuples -j, --jobs=NUM use this many concurrent connections to vacuum --min-mxid-age=MXID_AGE minimum multixact ID age of tables to vacuum --min-xid-age=XID_AGE minimum transaction ID age of tables to vacuum --no-index-cleanup don't remove index entries that point to dead tuples --no-process-main skip the main relation --no-process-toast skip the TOAST table associated with the table to vacuum --no-truncate don't truncate empty pages at the end of the table -n, --schema=SCHEMA vacuum tables in the specified schema(s) only -N, --exclude-schema=SCHEMA do not vacuum tables in the specified schema(s) -P, --parallel=PARALLEL_WORKERS use this many background workers for vacuum, if available -q, --quiet don't write any messages --skip-locked skip relations that cannot be immediately locked -t, --table='TABLE[(COLUMNS)]' vacuum specific table(s) only -v, --verbose write a lot of output -V, --version output version information, then exit -z, --analyze update optimizer statistics -Z, --analyze-only only update optimizer statistics; no vacuum --analyze-in-stages only update optimizer statistics, in multiple stages for faster results; no vacuum -?, --help show this help, then exit Connection options: -h, --host=HOSTNAME database server host or socket directory -p, --port=PORT database server port -U, --username=USERNAME user name to connect as -w, --no-password never prompt for password -W, --password force password prompt --maintenance-db=DBNAME alternate maintenance database Read the description of the SQL command VACUUM for details. Report bugs to . PostgreSQL home page: