vacuumdb [connection-options...] [[-d] dbname] [--full | -f] [--verbose | -v] [--analyze | -z] [--table 'table
[( column [,...] )]'
]
vacuumdb [connection-options...] [--all | -a] [--full | -f] [--verbose | -v] [--analyze | -z]
Specifies the name of the database to be cleaned or analyzed.
Calculate statistics on the database for use by the optimizer.
Vacuum all databases.
Print detailed information during processing.
Clean or analyze table only. Column names may be specified only in conjunction with the --analyze option.
If you specify columns to vacuum, you need to escape the parentheses from the shell. |
vacuumdb also accepts the following command line arguments for connection parameters:
Specifies the hostname 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 postmaster is listening for connections.
Username to connect to the database as. (This is not your Linux user name.)
Force password prompt.
Echo the commands that vacuumdb generates and sends to the backend.
Do not display a response.
vacuumdb is a utility for cleaning a PostgreSQL database. vacuumdb will also generate internal statistics used by the PostgreSQL query optimizer.
vacuumdb is a shell script wrapper around the backend command VACUUM via the PostgreSQL interactive terminal psql. There is no effective difference between vacuuming databases via this or other methods. psql must be found by the script and a database server must be running at the targeted host. Any default settings and environment variables available to psql and the libpq front-end library do apply.
To clean the database test:
$ vacuumdb test |
To clean and analyze for the optimizer a database named bigdb:
$ vacuumdb --analyze bigdb |
To analyze a single column bar in table foo in a database named xyzzy for the optimizer:
$ vacuumdb --analyze --verbose --table 'foo(bar)' xyzzy |