reindexdb — reindex a PostgreSQL database
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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:
Reindex all databases.
Specifies the name of the database to be reindexed. If this is
not specified and
--all) is not used, the database name is read from
the environment variable
that is not set, the user name specified for the connection is
Echo the commands that reindexdb generates and sends to the server.
Multiple indexes can be recreated by writing multiple
Do not display progress messages.
Reindex database's system catalogs.
Multiple schemas can be reindexed by writing multiple
Multiple tables can be reindexed by writing multiple
Print detailed information during processing.
Print the reindexdb version and exit.
Show help about reindexdb command line arguments, and exit.
reindexdb also accepts the following command-line arguments for connection parameters:
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.
Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.
User name to connect as.
Never issue a password prompt. If the server requires password
authentication and a password is not available by other means such
.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.
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.
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
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
To reindex the database
To reindex the table
foo and the
bar in a database named
reindexdb --table=foo --index=bar abcd
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