vacuumdb accepts the following command line arguments:
Specifies the name of the database to be cleaned or analyzed.
Vacuum all databases.
Perform ``full'' vacuuming.
Print detailed information during processing.
Calculate statistics for use by the optimizer.
-t table [ (__''column'' __[[,...?) ]
--table table [,...?) ]
Clean or analyze table only. Column names may be specified only in conjunction with the --analyze option.
Tip: If you specify columns to vacuum, you probably have to escape the parentheses from the shell.
vacuumdb also accepts the following command line arguments for connection parameters:
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.
Specifies the Internet TCP/IP port or local Unix domain socket file extension on which the server is listening for connections.
User name to connect as
Force password prompt.
Echo the commands that vacuumdb generates and sends to the server.
Do not display a response.
Everything went well.
vacuumdb: Vacuum failed.
vacuumdb is a utility for cleaning a PostgreSQL database. vacuumdb will also generate internal statistics used by the PostgreSQL query optimizer.
To clean the database test:
$ vacuumdb test
To clean and analyze for the optimizer a database named bigdb:
$ vacuumdb --analyze bigdb
To clean a single table foo in a database named xyzzy, and analyze a single column bar of the table for the optimizer: