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reindexdb

Rebuilds indexes in a database.

Synopsis

reindexdb [ <connection-option> ... ]
          [ --table | -t <table> ]
          [ --index | -i <index> ]
          [ <dbname> ]

reindexdb [ <connection-option> ... ]
          [ --all | -a ]

reindexdb [ <connection-option> ... ]
          [ --system | -s ]
          [ <dbname> ]

reindexdb -? | --help

reindexdb -V | --version

Description

reindexdb is a utility for rebuilding indexes in Greengage DB.

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.

Options

-a | --all

Reindex all databases.

[-d] <dbname> | [--dbname=]<dbname>

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 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 the specified index only.

-q | --quiet

Do not display a response.

-s | --system

Reindex system catalogs.

-t <table> | --table=<table>

Reindex the specified table only. Multiple tables can be reindexed by writing multiple -t switches.

-V | --version

Print the reindexdb version and exit.

-? | --help

Show help about reindexdb command line arguments, and exit.

Connection options

-h <host> | --host=<host>

The host name of the machine on which the Greengage DB master is running. If not specified, reads from the PGHOST environment variable or defaults to localhost.

-p <port> | --port=<port>

The TCP port on which the Greengage DB master is listening for connections. If not specified, reads from the PGPORT environment variable or defaults to 5432.

-U <username> | --username=<username>

The database role name to connect as. If not specified, reads from the environment variable PGUSER or defaults to the current system user name.

-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 a password prompt.

--maintenance-db=<dbname>

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.

Notes

reindexdb causes locking of system catalog tables, which could affect currently running queries. To avoid disrupting ongoing business operations, schedule the reindexdb operation during a period of low activity.

reindexdb might need to connect several times to the master server, asking for a password each time. It is convenient to have a ~/.pgpass file in such cases.

Examples

Reindex the mydb database:

$ reindexdb mydb

Reindex the foo table and the bar index in a database named abcd:

$ reindexdb --table foo --index bar abcd
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