VACUUMDB(1) PostgreSQL Client Applications VACUUMDB(1)NAMEvacuumdb - Clean and analyze a Postgres database
SYNOPSISvacuumdb [ connection-options... ] [ [ -d ] dbname ] [ --analyze | -z
] [ --verbose | -v ] [ --table 'table [ ( column [,...] ) ]' ]
vacuumdb [ connection-options... ] [ --all | -a ] [ --analyze | -z ] [
--verbose | -v ]
INPUTS
vacuumdb accepts the following command line arguments:
-d dbname
--dbname dbname
Specifies the name of the database to be cleaned or analyzed.
-z
--analyze
Calculate statistics on the database for use by the optimizer.
-a
--alldb
Vacuum all databases.
-v
--verbose
Print detailed information during processing.
-t table [ (column [,...]) ]
--table table [ (column [,...]) ]
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 connec‐
tion parameters:
-h host
--host host
Specifies the hostname of the machine on which the postmaster is
running. If host begins with a slash, it is used as the direc‐
tory 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 postmaster is listening for connec‐
tions.
-U username
--username username
Username to connect as.
-W
--password
Force password prompt.
-e
--echo Echo the commands that vacuumdb generates and sends to the back‐
end.
-q
--quiet
Do not display a response.
OUTPUTS
VACUUM Everything went well.
vacuumdb: Vacuum failed.
Something went wrong. vacuumdb is only a wrapper script. See
VACUUM [vacuum(l)] and psql(1) for a detailed discussion of
error messages and potential problems.
DESCRIPTIONvacuumdb is a utility for cleaning a Postgres database. vacuumdb will
also generate internal statistics used by the Postgres query optimizer.
vacuumdb is a shell script wrapper around the backend command VACUUM
[vacuum(l)] via the Postgres interactive terminal psql(1). 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. Also, any default settings and envi‐
ronment variables available to psql and the libpq front-end library do
apply.
USAGE
To clean the database test:
$ vacuumdb test
To analyze for the optimzer 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
Application 2000-11-11 VACUUMDB(1)
