reindexdb — reindex a PostgreSQL database
reindexdb
[connection-option
...] [option
...] [ --schema
| -S
schema
]
... [ --table
| -t
table
]
... [ --index
| -i
index
]
... [dbname
]
reindexdb
[connection-option
...] [option
...] --all
| -a
reindexdb
[connection-option
...] [option
...] --system
| -s
[dbname
]
reindexdb is a utility for rebuilding indexes in a PostgreSQL database.
reindexdb is a wrapper around the SQL command REINDEX. There is no effective difference between reindexing databases via this utility and via other methods for accessing the server.
reindexdb accepts the following command-line arguments:
-a
--all
Reindex all databases.
[-d] dbname
[--dbname=]dbname
Specifies the name of the database to be reindexed.
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.
-e
--echo
Echo the commands that reindexdb generates and sends to the server.
-i index
--index=index
Recreate index
only.
Multiple indexes can be recreated by writing multiple
-i
switches.
-q
--quiet
Do not display progress messages.
-s
--system
Reindex database's system catalogs.
-S schema
--schema=schema
Reindex schema
only.
Multiple schemas can be reindexed by writing multiple
-S
switches.
-t table
--table=table
Reindex table
only.
Multiple tables can be reindexed by writing multiple
-t
switches.
-v
--verbose
Print detailed information during processing.
-V
--version
Print the reindexdb version and exit.
-?
--help
Show help about reindexdb command line arguments, and exit.
reindexdb 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 the value begins with a slash, it is used as the directory for the Unix domain socket.
-p port
--port=port
Specifies the TCP 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
--no-password
Never issue a password prompt. If the server requires
password authentication and a password is not available by
other means such as a .pgpass
file, the
connection attempt will fail. This option can be useful in
batch jobs and scripts where no user is present to enter a
password.
-W
--password
Force reindexdb to prompt for a password before connecting to a database.
This option is never essential, since
reindexdb will automatically prompt
for a password if the server demands password authentication.
However, reindexdb will waste a
connection attempt finding out that the server wants a password.
In some cases it is worth typing -W
to avoid the extra
connection attempt.
--maintenance-db=dbname
Specifies the name of the database to connect to discover what other
databases should be reindexed. If not specified, the
postgres
database will be used,
and if that does not exist, template1
will be used.
PGDATABASE
PGHOST
PGPORT
PGUSER
Default connection parameters
This utility, like most other PostgreSQL utilities, also uses the environment variables supported by libpq (see Section 33.14).
In case of difficulty, see REINDEX and psql for discussions of potential problems and error messages. The database server must be running at the targeted host. Also, any default connection settings and environment variables used by the libpq front-end library will apply.
reindexdb might need to connect several
times to the PostgreSQL server, asking
for a password each time. It is convenient to have a
~/.pgpass
file in such cases. See Section 33.15 for more information.
To reindex the database test
:
$
reindexdb test
To reindex the table foo
and the index
bar
in a database named abcd
:
$
reindexdb --table=foo --index=bar abcd