reindexdb — reindex a PostgreSQL database
schema ] ... [
table ] ... [
index ] ... [
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
PGDATABASE. If that is not
set, the user name specified for the connection is
Echo the commands that reindexdb generates and sends to the server.
index only. Multiple
indexes can be recreated by writing multiple
Do not display progress messages.
Reindex database's system catalogs.
schema only. Multiple
schemas can be reindexed by writing multiple
table only. 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 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.
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
Specifies the name of the database to connect to
discover what other databases should be reindexed. If not
database will be used, and if that does not exist,
template1 will be used.
Default connection parameters
This utility, like most other PostgreSQL utilities, also uses the environment variables supported by libpq (see Section 34.14).
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 34.15 for more
To reindex the database
To reindex the table
bar in a database named
reindexdb --table=foo --index=bar abcd
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