1REINDEXDB(1) PostgreSQL 15.4 Documentation REINDEXDB(1)
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6 reindexdb - reindex a PostgreSQL database
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9 reindexdb [connection-option...] [option...]
10 [ -S | --schema schema ]... [ -t | --table table ]...
11 [ -i | --index index ]... [dbname]
12 reindexdb [connection-option...] [option...] -a | --all
14 reindexdb [connection-option...] [option...] -s | --system [dbname]
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18 reindexdb is a utility for rebuilding indexes in a PostgreSQL database.
19 reindexdb is a wrapper around the SQL command REINDEX. There is no
21 effective difference between reindexing databases via this utility and
22 via other methods for accessing the server.
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25 reindexdb accepts the following command-line arguments:
26 -a
28 --all
29 Reindex all databases.
30 --concurrently
32 Use the CONCURRENTLY option. See REINDEX(7), where all the caveats
33 of this option are explained in detail.
34 [-d] dbname
36 [--dbname=]dbname
37 Specifies the name of the database to be reindexed, when -a/--all
38 is not used. If this is not specified, the database name is read
39 from the environment variable PGDATABASE. If that is not set, the
40 user name specified for the connection is used. The dbname can be a
41 connection string. If so, connection string parameters will
42 override any conflicting command line options.
43 -e
45 --echo
46 Echo the commands that reindexdb generates and sends to the server.
47 -i index
49 --index=index
50 Recreate index only. Multiple indexes can be recreated by writing
51 multiple -i switches.
52 -j njobs
54 --jobs=njobs
55 Execute the reindex commands in parallel by running njobs commands
56 simultaneously. This option may reduce the processing time but it
57 also increases the load on the database server.
58 reindexdb will open njobs connections to the database, so make sure
60 your max_connections setting is high enough to accommodate all
61 connections.
62 Note that this option is incompatible with the --index and --system
64 options.
65 -q
67 --quiet
68 Do not display progress messages.
69 -s
71 --system
72 Reindex database's system catalogs only.
73 -S schema
75 --schema=schema
76 Reindex schema only. Multiple schemas can be reindexed by writing
77 multiple -S switches.
78 -t table
80 --table=table
81 Reindex table only. Multiple tables can be reindexed by writing
82 multiple -t switches.
83 --tablespace=tablespace
85 Specifies the tablespace where indexes are rebuilt. (This name is
86 processed as a double-quoted identifier.)
87 -v
89 --verbose
90 Print detailed information during processing.
91 -V
93 --version
94 Print the reindexdb version and exit.
95 -?
97 --help
98 Show help about reindexdb command line arguments, and exit.
99 reindexdb also accepts the following command-line arguments for
101 connection parameters:
102 -h host
104 --host=host
105 Specifies the host name of the machine on which the server is
106 running. If the value begins with a slash, it is used as the
107 directory for the Unix domain socket.
108 -p port
110 --port=port
111 Specifies the TCP port or local Unix domain socket file extension
112 on which the server is listening for connections.
113 -U username
115 --username=username
116 User name to connect as.
117 -w
119 --no-password
120 Never issue a password prompt. If the server requires password
121 authentication and a password is not available by other means such
122 as a .pgpass file, the connection attempt will fail. This option
123 can be useful in batch jobs and scripts where no user is present to
124 enter a password.
125 -W
127 --password
128 Force reindexdb to prompt for a password before connecting to a
129 database.
130 This option is never essential, since reindexdb will automatically
132 prompt for a password if the server demands password
133 authentication. However, reindexdb will waste a connection attempt
134 finding out that the server wants a password. In some cases it is
135 worth typing -W to avoid the extra connection attempt.
136 --maintenance-db=dbname
138 Specifies the name of the database to connect to to discover which
139 databases should be reindexed, when -a/--all is used. If not
140 specified, the postgres database will be used, or if that does not
141 exist, template1 will be used. This can be a connection string. If
142 so, connection string parameters will override any conflicting
143 command line options. Also, connection string parameters other than
144 the database name itself will be re-used when connecting to other
145 databases.
146
148 PGDATABASE
149 PGHOST
150 PGPORT
151 PGUSER
152 Default connection parameters
153 PG_COLOR
155 Specifies whether to use color in diagnostic messages. Possible
156 values are always, auto and never.
157 This utility, like most other PostgreSQL utilities, also uses the
159 environment variables supported by libpq (see Section 34.15).
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162 In case of difficulty, see REINDEX(7) and psql(1) for discussions of
163 potential problems and error messages. The database server must be
164 running at the targeted host. Also, any default connection settings and
165 environment variables used by the libpq front-end library will apply.
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168 reindexdb might need to connect several times to the PostgreSQL server,
169 asking for a password each time. It is convenient to have a ~/.pgpass
170 file in such cases. See Section 34.16 for more information.
171
173 To reindex the database test:
174 $ reindexdb test
176 To reindex the table foo and the index bar in a database named abcd:
178 $ reindexdb --table=foo --index=bar abcd
180
182 REINDEX(7)
183PostgreSQL 15.4 2023 REINDEXDB(1)