reindexdb - Online in the Cloud

PROGRAM:

NAME

reindexdb - reindex a PostgreSQL database

SYNOPSIS

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]

DESCRIPTION

reindexdb is a utility for rebuilding indexes in a PostgreSQL database.

reindexdb is a wrapper around the SQL command REINDEX(7). There is no effective difference
between reindexing databases via this utility and via other methods for accessing the
server.

OPTIONS

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.

ENVIRONMENT

PGDATABASE
PGHOST
PGPORT
PGUSER
Default connection parameters

This utility, like most other PostgreSQL utilities, also uses the environment variables
supported by libpq (see Section 31.14, “Environment Variables”, in the documentation).

DIAGNOSTICS

In case of difficulty, see REINDEX(7) and psql(1) 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.

NOTES

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
31.15, “The Password File”, in the documentation for more information.

EXAMPLES

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

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