reindexdb
reindexdb
reindexdb - reindex a PostgreSQL database
Synopsis
reindexdb
[
connection-option
...] [
option
...]
[
-S
|
--schema
schema
]
...
[
-t
|
--table
table
]
...
[
-i
|
--index
index
]
... [
dbname
]
reindexdb
[
connection-option
...] [
option
...]
-a
|
--all
reindexdb
[
connection-option
...] [
option
...]
-s
|
--system
[
dbname
]
Description
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.
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, when
-a/--allis not used. If this is not specified, the database name is read from the environment variablePGDATABASE. If that is not set, the user name specified for the connection is used. Thedbnamecan be a connection string . If so, connection string parameters will override any conflicting command line options. -
-e
--echo -
Echo the commands that reindexdb generates and sends to the server.
-
-iindex
--index=index -
Recreate
indexonly. Multiple indexes can be recreated by writing multiple-iswitches. -
-q
--quiet -
Do not display progress messages.
-
-s
--system -
Reindex database's system catalogs.
-
-Sschema
--schema=schema -
Reindex
schemaonly. Multiple schemas can be reindexed by writing multiple-Sswitches. -
-ttable
--table=table -
Reindex
tableonly. Multiple tables can be reindexed by writing multiple-tswitches. -
-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:
-
-hhost
--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.
-
-pport
--port=port -
Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.
-
-Uusername
--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
.pgpassfile, 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
-Wto avoid the extra connection attempt. -
--maintenance-db=dbname -
Specifies the name of the database to connect to to discover which databases should be reindexed, when
-a/--allis used. If not specified, thepostgresdatabase will be used, or if that does not exist,template1will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options. Also, connection string parameters other than the database name itself will be re-used when connecting to other databases.
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 34.14 ).
Diagnostics
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.
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 34.15
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