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reindexdb

reindexdb — reindex a PostgreSQL database

当前阅读 PG 18·选择有来源记录的版本

此版本暂无所选语言的定义,以下显示原始英文内容。

Documented executable
reindexdb
Executable version
18.6
Reference inventory
Client applications
Option definition groups
19
environment
map[description:Default connection parameters name:PGDATABASE PGHOST PGPORT PGUSER], map[description:Specifies whether to use color in diagnostic messages. Possible values are always , auto and never . name:PG_COLOR]
manual path
app-reindexdb.html
signature
reindexdb [ connection-option ...] [ option ...] [ -S | --schema schema ] ... [ -t | --table table ] ... [ -i | --index index ] ... [ -s | --system ] [ dbname | -a | --all ]
synopsis
reindexdb [ connection-option ...] [ option ...] [ -S | --schema schema ] ... [ -t | --table table ] ... [ -i | --index index ] ... [ -s | --system ] [ dbname | -a | --all ]

版本定义 PG 18

reindexdb

reindexdb — reindex a PostgreSQL database

Synopsis

reindexdb [connection-option...] [option...] [ -S | --schema schema ] ... [ -t | --table table ] ... [ -i | --index index ] ... [ -s | --system ] [ dbname | -a | --all ]

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.

--concurrently

Use the CONCURRENTLY option. See REINDEX, where all the caveats of this option are explained in detail.

[-d] dbname
[--dbname=]dbname

Specifies the name of the database to be reindexed, when -a/--all is not used. If this is not specified, the database name is read from the environment variable PGDATABASE. If that is not set, the user name specified for the connection is used. The dbname can 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.

-i index
--index=index

Recreate index only. Multiple indexes can be recreated by writing multiple -i switches.

-j njobs
--jobs=njobs

Execute the reindex commands in parallel by running njobs commands simultaneously. This option may reduce the processing time but it also increases the load on the database server.

reindexdb will open njobs connections to the database, so make sure your max_connections setting is high enough to accommodate all connections.

Note that this option is incompatible with the --system option.

-q
--quiet

Do not display progress messages.

-s
--system

Reindex database's system catalogs only.

-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.

--tablespace=tablespace

Specifies the tablespace where indexes are rebuilt. (This name is processed as a double-quoted identifier.)

-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

When the -a/--all is used, connect to this database to gather the list of databases to reindex. If not specified, the postgres database will be used, or if that does not exist, template1 will 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

PG_COLOR

Specifies whether to use color in diagnostic messages. Possible values are always, auto and never.

This utility, like most other PostgreSQL utilities, also uses the environment variables supported by libpq (see Section 32.15).

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.

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

See Also

REINDEX

Documented options

Option and argumentsDescription
-a --allReindex all databases.
--concurrentlyUse the CONCURRENTLY option. See REINDEX , where all the caveats of this option are explained in detail.
-e --echoEcho the commands that reindexdb generates and sends to the server.
-i index --index= indexRecreate index only. Multiple indexes can be recreated by writing multiple -i switches.
-j njobs --jobs= njobsExecute the reindex commands in parallel by running njobs commands simultaneously. This option may reduce the processing time but it also increases the load on the database server.
-q --quietDo not display progress messages.
-s --systemReindex database's system catalogs only.
-S schema --schema= schemaReindex schema only. Multiple schemas can be reindexed by writing multiple -S switches.
-t table --table= tableReindex table only. Multiple tables can be reindexed by writing multiple -t switches.
--tablespace= tablespaceSpecifies the tablespace where indexes are rebuilt. (This name is processed as a double-quoted identifier.)
-v --verbosePrint detailed information during processing.
-V --versionPrint the reindexdb version and exit.
-? --helpShow help about reindexdb command line arguments, and exit.
-h host --host= hostSpecifies 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= portSpecifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.
-U username --username= usernameUser name to connect as.
-w --no-passwordNever 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 --passwordForce reindexdb to prompt for a password before connecting to a database.
--maintenance-db= dbnameWhen the -a / --all is used, connect to this database to gather the list of databases to reindex. If not specified, the postgres database will be used, or if that does not exist, template1 will 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 variables

VariableMeaning
PGDATABASE PGHOST PGPORT PGUSERDefault connection parameters
PG_COLORSpecifies whether to use color in diagnostic messages. Possible values are always , auto and never .

比较版本

完整来源事实

options

map[description:Reindex all databases. names:[-a --all] signature:-a --all source_url:/docs/18/app-reindexdb.html summary:Reindex all databases.], map[description:Use the CONCURRENTLY option. See REINDEX , where all the caveats of this option are explained in detail. names:[--concurrently] signature:--concurrently source_url:/docs/18/app-reindexdb.html summary:Use the CONCURRENTLY option. See REINDEX , where all the caveats of this option are explained in detail.], map[description:Echo the commands that reindexdb generates and sends to the server. names:[-e --echo] signature:-e --echo source_url:/docs/18/app-reindexdb.html summary:Echo the commands that reindexdb generates and sends to the server.], map[description:Recreate index only. Multiple indexes can be recreated by writing multiple -i switches. names:[-i index --index= index] signature:-i index --index= index source_url:/docs/18/app-reindexdb.html summary:Recreate index only. Multiple indexes can be recreated by writing multiple -i switches.], map[description:Execute the reindex commands in parallel by running njobs commands simultaneously. This option may reduce the processing time but it also increases the load on the database server. reindexdb will open njobs connections to the database, so make sure your max_connections setting is high enough to accommodate all connections. Note that this option is incompatible with the --system option. names:[-j njobs --jobs= njobs] signature:-j njobs --jobs= njobs source_url:/docs/18/app-reindexdb.html summary:Execute the reindex commands in parallel by running njobs commands simultaneously. This option may reduce the processing time but it also increases the load on the database server.], map[description:Do not display progress messages. names:[-q --quiet] signature:-q --quiet source_url:/docs/18/app-reindexdb.html summary:Do not display progress messages.], map[description:Reindex database's system catalogs only. names:[-s --system] signature:-s --system source_url:/docs/18/app-reindexdb.html summary:Reindex database's system catalogs only.], map[description:Reindex schema only. Multiple schemas can be reindexed by writing multiple -S switches. names:[-S schema --schema= schema] signature:-S schema --schema= schema source_url:/docs/18/app-reindexdb.html summary:Reindex schema only. Multiple schemas can be reindexed by writing multiple -S switches.], map[description:Reindex table only. Multiple tables can be reindexed by writing multiple -t switches. names:[-t table --table= table] signature:-t table --table= table source_url:/docs/18/app-reindexdb.html summary:Reindex table only. Multiple tables can be reindexed by writing multiple -t switches.], map[description:Specifies the tablespace where indexes are rebuilt. (This name is processed as a double-quoted identifier.) names:[--tablespace= tablespace] signature:--tablespace= tablespace source_url:/docs/18/app-reindexdb.html summary:Specifies the tablespace where indexes are rebuilt. (This name is processed as a double-quoted identifier.)], map[description:Print detailed information during processing. names:[-v --verbose] signature:-v --verbose source_url:/docs/18/app-reindexdb.html summary:Print detailed information during processing.], map[description:Print the reindexdb version and exit. names:[-V --version] signature:-V --version source_url:/docs/18/app-reindexdb.html summary:Print the reindexdb version and exit.], map[description:Show help about reindexdb command line arguments, and exit. names:[-? --help] signature:-? --help source_url:/docs/18/app-reindexdb.html summary:Show help about reindexdb command line arguments, and exit.], map[description: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. names:[-h host --host= host] signature:-h host --host= host source_url:/docs/18/app-reindexdb.html summary: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.], map[description:Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections. names:[-p port --port= port] signature:-p port --port= port source_url:/docs/18/app-reindexdb.html summary:Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.], map[description:User name to connect as. names:[-U username --username= username] signature:-U username --username= username source_url:/docs/18/app-reindexdb.html summary:User name to connect as.], map[description: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. names:[-w --no-password] signature:-w --no-password source_url:/docs/18/app-reindexdb.html summary: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.], map[description: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. names:[-W --password] signature:-W --password source_url:/docs/18/app-reindexdb.html summary:Force reindexdb to prompt for a password before connecting to a database.], map[description:When the -a / --all is used, connect to this database to gather the list of databases to reindex. If not specified, the postgres database will be used, or if that does not exist, template1 will 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. names:[--maintenance-db= dbname] signature:--maintenance-db= dbname source_url:/docs/18/app-reindexdb.html summary:When the -a / --all is used, connect to this database to gather the list of databases to reindex. If not specified, the postgres database will be used, or if that does not exist, template1 will 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.]

来源引用

完整定义与证据 JSON

定义来源

center · PostgreSQL 18 · ee8d1a3612338fd9adf250730cb640fcc5233b5491337cc00a316a44e3a0b9f8

正文语言: en · ee8d1a3612338fd9adf250730cb640fcc5233b5491337cc00a316a44e3a0b9f8