Computer Science
PG_DUMPALL(1) PG_DUMPALL(1)
NAME
pg_dumpall - Extract all Postgres databases into a script
file
SYNOPSIS
pg_dumpall
pg_dumpall [ -h host ] [ -p port ] [ -a ] [ -d ] [ -D ] [ -o ] [ -s ] [ -u ] [ -v ] [ -x ]
INPUTS
pg_dumpall accepts the following command line arguments:
-a Dump out only the data, no schema (definitions).
-d Dump data as proper insert strings.
-D Dump data as inserts with attribute names
-n Suppress double quotes around identifiers unless
absolutely necessary. This may cause trouble load-
ing this dumped data if there are reserved words
used for identifiers.
-o Dump object identifiers (OIDs) for every table.
-s Dump out only the schema (definitions), no data.
-u Use password authentication. Prompts for username
and password.
-v Specifies verbose mode
-x Prevent dumping ACLs (grant/revoke commands) and
table ownership information.
pg_dumpall also accepts the following command line argu-
ments for connection parameters:
-h host
Specifies the hostname of the machine on which the
postmaster is running. Defaults to using a local
Unix domain socket rather than an IP connection..
-p port
Specifies the Internet TCP/IP port or local Unix
domain socket file extension on which the postmas-
ter is listening for connections. The port number
defaults to 5432, or the value of the PGPORT envi-
ronment variable (if set).
-u Use password authentication. Prompts for username
and password.
OUTPUTS
pg_dumpall will create a file or write to stdout.
Connection to database 'template1' failed.
pg_dumpall could not attach to the postmaster pro-
cess on the specified host and port. If you see
this message, ensure that the postmaster is running
on the proper host and that you have specified the
proper port. If your site uses an authentication
system, ensure that you have obtained the required
authentication credentials.
Connection to database 'dbname' failed.
You do not have a valid entry in the relation
pg_shadow and and will not be allowed to access
Postgres. Contact your Postgres administrator.
dumpSequence(table): SELECT failed
You do not have permission to read the database.
Contact your Postgres site administrator.
Note: pg_dumpall internally executes SELECT state-
ments. If you have problems running pg_dumpall,
make sure you are able to select information from
the database using, for example, psql.
DESCRIPTION
pg_dumpall is a utility for dumping out all Postgres
databases into one file. It also dumps the pg_shadow
table, which is global to all databases. pg_dumpall
includes in this file the proper commands to automatically
create each dumped database before loading.
pg_dumpall takes all pg_dump options, but -f, -t and
dbname should be omitted.
Refer to pg_dump(1) for more information on this capabil-
ity.
USAGE
To dump all databases:
% pg_dumpall -o > db.out
Tip: You can use most pg_dump options for
pg_dumpall.
To reload this database:
% psql -e template1 < db.out
Tip: You can use most psql options when reloading.
Application 15 August 1999 1
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