REINDEXDB(1) PostgreSQL 18.6 Documentation REINDEXDB(1) NAME 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 effec- tive 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(7), 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 conflict- ing 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 mul- tiple -i switches. -j njobs --jobs=njobs Execute the reindex commands in parallel by running njobs commands si- multaneously. 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 connec- tions. 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 mul- tiple -S switches. -t table --table=table Reindex table only. Multiple tables can be reindexed by writing multi- ple -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 authen- tication and a password is not available by other means such as a .pg- pass 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 data- base. 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 parame- ters other than the database name itself will be re-used when connect- ing 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 environ- ment variables supported by libpq (see Section 32.15). DIAGNOSTICS In case of difficulty, see REINDEX(7) and psql(1) for discussions of poten- tial 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(7) PostgreSQL 18.6 2026 REINDEXDB(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | ENVIRONMENT | DIAGNOSTICS | EXAMPLES | SEE ALSO
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