clusterdb 1 Application clusterdb cluster a PostgreSQL database clusterdb connection-options --table | -t 'table dbname clusterdb connection-options --all-a clusterdb is a utility for clustering tables inside a PostgreSQL database. clusterdb is a shell script wrapper around the backend command via the PostgreSQL interactive terminal . There is no effective difference between clustering databases via this or other methods. psql must be found by the script and a database server must be running at the targeted host. Also, any default settings and environment variables available to psql and the libpq front-end library do apply. clusterdb will need to connect several times to the PostgreSQL server, asking for the password each time. It will probably be very convenient to have a PGPASSWORDFILE in that case. clusterdb accepts the following command line arguments: -d dbname --dbname dbname Specifies the name of the database to be clustered. If this is not specified and -a (or --all) is not used, the database name is read from the environment variable PGDATABASE. If that is not set, the user name specified for the connection is used. -a --all Cluster all databases. -t table --table table Clusters table only. clusterdb also accepts the following command line arguments for connection parameters: -h host --host host Specifies the host name of the machine on which the server is running. If host begins with a slash, it is used as the directory for the Unix domain socket. -p port --port port Specifies the Internet TCP/IP port or local Unix domain socket file extension on which the server is listening for connections. -U username --username username User name to connect as -W --password Force password prompt. -e --echo Echo the commands that clusterdb generates and sends to the server. -q --quiet Do not display a response. CLUSTER Everything went well. clusterdb: Cluster failed. Something went wrong. clusterdb is only a wrapper script. See and for a detailed discussion of error messages and potential problems. Note that this message may appear once per table to be clustered. PGDATABASE PGHOST PGPORT PGUSER Default connection parameters. To cluster the database test: $ clusterdb test To cluster a single table foo in a database named xyzzy: $ clusterdb --verbose --table foo xyzzy