PG_RESTORE(1)
π¦ NAME π¦
okay so bestie, this is PG_RESTORE(1) β the manual page for pg_restore, straight outta the PostgreSQL 15.19 Documentation set. It's the utility that restores a PostgreSQL database from an archive file created by pg_dump, and it is genuinely that girl π
.
πΈ SYNOPSIS πΈ
pg_restore [connection-option...] [option...] [filename]
π DESCRIPTION π
pg_restore is the utility for restoring a PostgreSQL database from an archive created by pg_dump(1) in one of the non-plain-text formats. It will issue the commands necessary to reconstruct the database to the state it was in at the time it was saved. The archive files also allow pg_restore to be selective about what is restored, or even to reorder the items prior to being restored. The archive files are designed to be portable across architectures, periodt β¨.
pg_restore can operate in two modes. If a database name is specified, pg_restore connects to that database and restores archive contents directly into the database. Otherwise, a script containing the SQL commands necessary to rebuild the database is created and written to a file or standard output. This script output is equivalent to the plain text output format of pg_dump. Some of the options controlling the output are therefore analogous to pg_dump options. iykyk π«Ά.
Obviously, pg_restore cannot restore information that is not present in the archive file. For instance, if the archive was made using the βdump data as INSERT commandsβ option, pg_restore will not be able to load the data using COPY statements. No cap π.
β οΈ Warning β οΈ Restoring a dump causes the destination to execute arbitrary code of the source superusers' choice. Partial dumps and partial restores do not limit that. If the source superusers are not trusted, the dumped SQL statements must be inspected before restoring. Non-plain-text dumps can be inspected by usingpg_restore's--fileoption. Note that the client running the dump and restore need not trust the source or destination superusers. This is highkey important, bestie π.
π OPTIONS π
pg_restore accepts the following command line arguments.
filenameβ Specifies the location of the archive file (or directory, for a directory-format archive) to be restored. If not specified, the standard input is used. Slay, stdin doing main character energy π.-a,--data-onlyβ Restore only the data, not the schema (data definitions). Table data, large objects, and sequence values are restored, if present in the archive. This option is similar to, but for historical reasons not identical to, specifying--section=data.-c,--cleanβ Before restoring database objects, issue commands toDROPall the objects that will be restored. This option is useful for overwriting an existing database. If any of the objects do not exist in the destination database, ignorable error messages will be reported, unless--if-existsis also specified π .-C,--createβ Create the database before restoring into it. If--cleanis also specified, drop and recreate the target database before connecting to it. With--create,pg_restorealso restores the database's comment if any, and any configuration variable settings that are specific to this database, that is, anyALTER DATABASE ... SET ...andALTER ROLE ... IN DATABASE ... SET ...commands that mention this database. Access privileges for the database itself are also restored, unless--no-aclis specified. When this option is used, the database named with-dis used only to issue the initialDROP DATABASEandCREATE DATABASEcommands. All data is restored into the database name that appears in the archive. That's the vibe check π.-d dbname,--dbname=dbnameβ Connect to database dbname and restore directly into the database. The dbname can be a connection string. If so, connection string parameters will override any conflicting command line options. Literally connection string override behavior, iconic β¨.-e,--exit-on-errorβ Exit if an error is encountered while sending SQL commands to the database. The default is to continue and to display a count of errors at the end of the restoration. The default is giving patient bestie energy;-eis giving no-time-for-this energy π€.-f filename,--file=filenameβ Specify output file for generated script, or for the listing when used with-l. Use-for stdout.-F format,--format=formatβ Specify format of the archive. It is not necessary to specify the format, sincepg_restorewill determine the format automatically. If specified, it can be one of the following:c,customβ The archive is in the custom format ofpg_dump.d,directoryβ The archive is a directory archive.t,tarβ The archive is a tar archive.
-I index,--index=indexβ Restore definition of named index only. Multiple indexes may be specified with multiple-Iswitches. Index girlies rise π¦.-j number-of-jobs,--jobs=number-of-jobsβ Run the most time-consuming steps ofpg_restoreβ those that load data, create indexes, or create constraints β concurrently, using up to number-of-jobs concurrent sessions. This option can dramatically reduce the time to restore a large database to a server running on a multiprocessor machine. This option is ignored when emitting a script rather than connecting directly to a database server. Each job is one process or one thread, depending on the operating system, and uses a separate connection to the server. The optimal value for this option depends on the hardware setup of the server, of the client, and of the network. Factors include the number of CPU cores and the disk setup. A good place to start is the number of CPU cores on the server, but values larger than that can also lead to faster restore times in many cases. Of course, values that are too high will lead to decreased performance because of thrashing. Too many jobs = chaos gremlin behavior π. Only the custom and directory archive formats are supported with this option. The input must be a regular file or directory (not, for example, a pipe or standard input). Also, multiple jobs cannot be used together with the option--single-transaction.-l,--listβ List the table of contents of the archive. The output of this operation can be used as input to the-Loption. Note that if filtering switches such as-nor-tare used with-l, they will restrict the items listed. It's giving table-of-contents reveal π.-L list-file,--use-list=list-fileβ Restore only those archive elements that are listed in list-file, and restore them in the order they appear in the file. Note that if filtering switches such as-nor-tare used with-L, they will further restrict the items restored. list-file is normally created by editing the output of a previous-loperation. Lines can be moved or removed, and can also be commented out by placing a semicolon (;) at the start of the line. See below for examples.-n schema,--schema=schemaβ Restore only objects that are in the named schema. Multiple schemas may be specified with multiple-nswitches. This can be combined with the-toption to restore just a specific table. Schema selectivity? Obsessed πΈ.-N schema,--exclude-schema=schemaβ Do not restore objects that are in the named schema. Multiple schemas to be excluded may be specified with multiple-Nswitches. When both-nand-Nare given for the same schema name, the-Nswitch wins and the schema is excluded. Sorry bestie, exclusion ate π .-O,--no-ownerβ Do not output commands to set ownership of objects to match the original database. By default,pg_restoreissuesALTER OWNERorSET SESSION AUTHORIZATIONstatements to set ownership of created schema elements. These statements will fail unless the initial connection to the database is made by a superuser (or the same user that owns all of the objects in the script). With-O, any user name can be used for the initial connection, and this user will own all the created objects. Ownership drama: skipped β¨.-P function-name(argtype [, ...]),--function=function-name(argtype [, ...])β Restore the named function only. Be careful to spell the function name and arguments exactly as they appear in the dump file's table of contents. Multiple functions may be specified with multiple-Pswitches. Exact spelling is not a suggestion, bestie π.-R,--no-reconnectβ This option is obsolete but still accepted for backwards compatibility. Vintage behavior, lowkey retired but still invited to the group chat π«Ά.-s,--schema-onlyβ Restore only the schema (data definitions), not data, to the extent that schema entries are present in the archive. This option is the inverse of--data-only. It is similar to, but for historical reasons not identical to, specifying--section=pre-data --section=post-data. (Do not confuse this with the--schemaoption, which uses the word βschemaβ in a different meaning.) Words are hard, schemas are harder π.-S username,--superuser=usernameβ Specify the superuser user name to use when disabling triggers. This is relevant only if--disable-triggersis used.-t table,--table=tableβ Restore definition and/or data of only the named table. For this purpose, βtableβ includes views, materialized views, sequences, and foreign tables. Multiple tables can be selected by writing multiple-tswitches. This option can be combined with the-noption to specify table(s) in a particular schema.
Note When-tis specified,pg_restoremakes no attempt to restore any other database objects that the selected table(s) might depend upon. Therefore, there is no guarantee that a specific-table restore into a clean database will succeed. Note This flag does not behave identically to the-tflag ofpg_dump. There is not currently any provision for wild-card matching inpg_restore, nor can you include a schema name within its-t. And, whilepg_dump's-tflag will also dump subsidiary objects (such as indexes) of the selected table(s),pg_restore's-tflag does not include such subsidiary objects. Note In versions prior to PostgreSQL 9.6, this flag matched only tables, not any other type of relation.
-T trigger,--trigger=triggerβ Restore named trigger only. Multiple triggers may be specified with multiple-Tswitches.-v,--verboseβ Specifies verbose mode. This will causepg_restoreto output detailed object comments and start/stop times to the output file, and progress messages to standard error. Repeating the option causes additional debug-level messages to appear on standard error. Verbose mode is for when you need the whole lore dump π₯.-V,--versionβ Print thepg_restoreversion and exit. Short, sweet, iconic.-x,--no-privileges,--no-aclβ Prevent restoration of access privileges (grant/revoke commands). No grant/revoke drama, just vibes π.-1,--single-transactionβ bestie, this wraps the whole entire restore inBEGIN/COMMITso it's giving all-or-nothing energy π either every command works or literally nothing changes. No half-restored chaos, no crumbs. Heads up tho: this option implies--exit-on-error, so the moment something goes wrong it's out. Periodt.--disable-triggersβ okay so this one ONLY matters when you're doing a data-only restore π₯ it tellspg_restoreto run commands that temporarily turn off triggers on the target tables while the data goes in. Use it when you've got referential integrity checks or other triggers on those tables and you do NOT want them firing during the data restore.
real talk: right now the commands emitted for--disable-triggershave to be run as superuser π so you should also pass a superuser name with-S, or β way better β just runpg_restoreas a PostgreSQL superuser in the first place.
--enable-row-securityβ this one's only relevant when you're restoring the contents of a table that has row security π¦ by defaultpg_restoresetsrow_securityto off so that ALL the data actually lands in the table. And if the user doesn't have the privileges to bypass row security, it throws an error. This parameter tellspg_restoreto setrow_securityto on instead, letting the user attempt the restore with row security enabled β and yeah, it might still fail if the user isn't allowed to insert those rows from the dump into the table π
note that this option currently also requires the dump to be inINSERTformat, becauseCOPY FROMdoes not support row security. iykyk.
--if-existsβ makes it useDROP ... IF EXISTScommands to drop objects in--cleanmode β¨ which suppresses the "does not exist" errors that would otherwise be out here ruining the vibe. Not valid unless--cleanis also specified.--no-commentsβ do not output commands to restore comments, even if the archive contains them. simple as that, no notes π--no-data-for-failed-tablesβ okay so by default, table data gets restored even if the creation command for that table failed (like, say, because it already exists). With this option, data for such a table is skipped π which is super useful when the target database already has the table contents you want. Example: auxiliary tables for PostgreSQL extensions like PostGIS might already be loaded in your target database, and specifying this option prevents duplicate or obsolete data from getting loaded into them. Iconic.
this option is effective only when restoring directly into a database β NOT when producing SQL script output. important distinction, bestie.
--no-publicationsβ do not output commands to restore publications, even if the archive contains them π--no-security-labelsβ do not output commands to restore security labels, even if the archive contains them πΈ--no-subscriptionsβ do not output commands to restore subscriptions, even if the archive contains them π¦--no-table-access-methodβ do not output commands to select table access methods. With this option, all objects get created with whichever access method is the default during restore β¨--no-tablespacesβ do not output commands to select tablespaces. With this option, all objects get created in whichever tablespace is the default during restore π--restrict-key=restrict_keyβ uses the string you give it as thepsql\restrictkey in the dump output π this can only be specified for SQL script output, i.e. when the--fileoption is used. If you don't specify a restrict key,pg_restoregenerates a random one as needed. Keys may contain only alphanumeric characters.
β οΈ this option is primarily intended for testing purposes and other scenarios that require repeatable output (like comparing dump files). It is NOT recommended for general use β a malicious server with advance knowledge of the key may be able to inject arbitrary code that will be executed on the machine that runs psql with the dump output. be careful out there fr fr π
--section=sectionnameβ only restore the named section, bestie. The section name can bepre-data,data, orpost-dataπ― you can specify this option more than once to select multiple sections. Default is to restore all sections.
Lemme break down what's actually in each one:
- the
datasection contains actual table data as well as large-object definitions post-dataitems consist of definitions of indexes, triggers, rules and constraints other than validated check constraintspre-dataitems consist of all other data definition items
--strict-namesβ requires that each schema (-n/--schema) and table (-t/--table) qualifier match at least one schema/table in the backup file π no ghost matches allowed.--use-set-session-authorizationβ outputs SQL-standardSET SESSION AUTHORIZATIONcommands instead ofALTER OWNERcommands to determine object ownership π¦ this makes the dump more standards-compatible, but depending on the history of the objects in the dump, it might not restore properly. so likeβ¦ standards girlie but at what cost π-?,--helpβ shows help aboutpg_restorecommand line arguments, and exits π the classic.
pg_restore also accepts the following command line arguments for connection parameters:
-h host,--host=hostβ specifies the host name of the machine on which the server is running π if the value begins with a slash, it's used as the directory for the Unix domain socket. The default is taken from thePGHOSTenvironment variable if set, else a Unix domain socket connection is attempted.-p port,--port=portβ specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections π defaults to thePGPORTenvironment variable if set, or a compiled-in default.-U username,--username=usernameβ user name to connect as π«Ά-w,--no-passwordβ never issue a password prompt π ββοΈ if the server requires password authentication and a password isn't available by other means such as a.pgpassfile, the connection attempt will fail. Super useful in batch jobs and scripts where no user is around to type in a password.-W,--passwordβ forcespg_restoreto prompt for a password before connecting to a database π
This option is never essential, since pg_restore will automatically prompt for a password if the server demands password authentication. But pg_restore will waste a connection attempt finding out that the server wants a password. In some cases it's worth typing -W to avoid that extra connection attempt. efficiency, bestie π
--role=rolenameβ specifies a role name to be used to perform the restore π this option causespg_restoreto issue aSET ROLE rolenamecommand after connecting to the database. It's useful when the authenticated user (specified by-U) lacks privileges needed bypg_restorebut can switch to a role with the required rights. Some installations have a policy against logging in directly as a superuser, and using this option lets restores happen without violating that policy. main character role-switching energy, honestly.
π ENVIRONMENT π
PGHOSTPGOPTIONSPGPORTPGUSER
β default connection parameters π
PG_COLORβ specifies whether to use color in diagnostic messages π¨ possible values arealways,autoandnever.
This utility, like most other PostgreSQL utilities, also uses the environment variables supported by libpq (see Section 34.15) π¦ However, it does not read PGDATABASE when a database name is not supplied. not me noticing that little exception π
π DIAGNOSTICS π
When a direct database connection is specified using the -d option, pg_restore internally executes SQL statements π«Ά so if you're having problems running pg_restore, make sure you're able to select information from the database using, for example, psql(1). Also, any default connection settings and environment variables used by the libpq front-end library will apply. standard libpq behavior, no cap.
π NOTES π
If your installation has any local additions to the template1 database, be careful to load the output of pg_restore into a truly empty database π otherwise you're likely to get errors due to duplicate definitions of the added objects. To make an empty database without any local additions, copy from template0 not template1, for example:
CREATE DATABASE foo WITH TEMPLATE template0;
The limitations of pg_restore are detailed below π
- When restoring data to a pre-existing table and the option
--disable-triggersis used,pg_restoreemits commands to disable triggers on user tables before inserting the data, then emits commands to re-enable them after the data has been inserted. If the restore is stopped in the middle, the system catalogs might be left in the wrong state π¬ yeah. messy. pg_restorecannot restore large objects selectively β for instance, only those for a specific table. If an archive contains large objects, then ALL large objects will be restored, or none of them if they're excluded via-L,-t, or other options π it's giving all-or-nothing, again.
See also the pg_dump(1) documentation for details on limitations of pg_dump π
Once restored, it is wise to run ANALYZE on each restored table so the optimizer has useful statistics β¨ see Section 25.1.3 and Section 25.1.6 for more information. do it, bestie, your query planner will thank you π«Ά
π EXAMPLES π
Okay bestie, imagine we dumped a database called mydb into a custom-format dump file. It looks like this:
$ pg_dump -Fc mydb > db.dump
Now say you wanna drop the database and recreate it straight from the dump:
$ dropdb mydb
$ pg_restore -C -d postgres db.dump
The database named in the -d switch can be any database that already exists in the cluster. pg_restore only uses it to issue the CREATE DATABASE command for mydb. With -C, data is always restored into the database name that appears in the dump file. periodt π
To restore the dump into a new database called newdb:
$ createdb -T template0 newdb
$ pg_restore -d newdb db.dump
Notice we don't use -C, and instead connect directly to the database to be restored into. Also note that we clone the new database from template0, not template1, to ensure it is initially empty. slay for clean starts β¨
To reorder database items, it is first necessary to dump the table of contents of the archive:
$ pg_restore -l db.dump > db.list
The listing file consists of a header and one line for each item, e.g.:
;
; Archive created at Mon Sep 14 13:55:39 2009
; dbname: DBDEMOS
; TOC Entries: 81
; Compression: 9
; Dump Version: 1.10-0
; Format: CUSTOM
; Integer: 4 bytes
; Offset: 8 bytes
; Dumped from database version: 8.3.5
; Dumped by pg_dump version: 8.3.8
;
;
; Selected TOC Entries:
;
3; 2615 2200 SCHEMA - public pasha
1861; 0 0 COMMENT - SCHEMA public pasha
1862; 0 0 ACL - public pasha
317; 1247 17715 TYPE public composite pasha
319; 1247 25899 DOMAIN public domain0 pasha
Semicolons start a comment, and the numbers at the start of lines refer to the internal archive ID assigned to each item. iykyk β those little numbers are lowkey the whole personality of the file π
Lines in the file can be commented out, deleted, and reordered. For example:
10; 145433 TABLE map_resolutions postgres
;2; 145344 TABLE species postgres
;4; 145359 TABLE nt_header postgres
6; 145402 TABLE species_records postgres
;8; 145416 TABLE ss_old postgres
could be used as input to pg_restore and would only restore items 10 and 6, in that order:
$ pg_restore -L db.list db.dump
not me editing a TOC list like it's a playlist and then restoring exactly what I want π
π SEE ALSO π
And that's the page, bestie π this whole thing is from PostgreSQL 15.19, dated 2026, and it's literally PG_RESTORE(1) β iconic behavior fr fr π
π¦ where this page comes from
- opensuse-leap 16.0: postgresql15 15.19-160000.1.1 Β· PostgreSQL
- opensuse-leap 16.0: postgresql15 15.19-160000.1.1 Β· PostgreSQL
- opensuse-leap 16.0: postgresql15 15.19-160000.1.1 Β· PostgreSQL
- opensuse-leap 16.0: postgresql15 15.19-160000.1.1 Β· PostgreSQL
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms