deliver output to the required file. This parameter could be omitted for file primarily based output formats, in which scenario the regular output is employed.

When dumping rational replication subscriptions, pg_dump will crank out produce SUBSCRIPTION instructions that utilize the hook up = Fake solution, to make sure that restoring the subscription does not make distant connections for developing a replication slot or for Preliminary desk copy. like that, the dump is usually restored with out requiring network access to the distant servers. it can be then up for the person to reactivate the subscriptions in an appropriate way.

When working with wildcards, be cautious to quote the sample if wanted to stop the shell from expanding the wildcards; see illustrations down below.

Specifies the name in the databases to get dumped. If it's not specified, the environment variable PGDATABASE is utilized. If that isn't set, the person identify specified for the connection is used.

+ one connections to your databases, so make sure your max_connections placing is superior ample to support all connections.

for that custom and Listing archive formats, this specifies compression of particular person table-data segments, along with the default would be to compress utilizing gzip at a moderate stage. For simple text output, placing a nonzero compression amount causes all the output file to become compressed, as though it were fed as a result of gzip, lz4, or zstd; although the default is never to compress.

pg_dump -j takes advantage of many databases connections; it connects to your databases when with the chief approach and once again for every employee job. Without the synchronized snapshot characteristic, different employee jobs wouldn't be sure to see the same knowledge in Every connection, which could lead on to an inconsistent backup.

for making an empty databases with no area additions, copy from template0 not template1, by way of example:

is usually a connection string. If that's so, relationship string parameters will override any conflicting command line possibilities.

The database action of pg_dump is Commonly gathered by the cumulative studies program. If This can be undesirable, you are able to established parameter track_counts to false via PGOPTIONS or perhaps the ALTER consumer command.

to revive from this kind of script, feed it to psql. Script data files can be used to reconstruct the database even on other equipment along with other architectures; with some modifications, even on other SQL databases items.

Some installations Possess a plan against logging in specifically as a superuser, and utilization of this selection makes it possible for dumps to generally be built with no violating the policy.

tend not to dump the contents of unlogged tables and sequences. This option has no effect on whether or not the desk and sequence definitions (schema) are dumped; it only suppresses dumping the table and sequence facts. info in unlogged tables and sequences is usually excluded when dumping from a standby server.

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Requesting exceptional locks on databases objects while running a parallel dump could bring about the dump to fail. The main reason would be that the pg_dump leader system requests shared locks (entry SHARE) on the objects that the worker procedures are going to dump later so as to be sure that nobody deletes them and can make them go away whilst the dump is running. more info If An additional customer then requests an exceptional lock over a desk, that lock will not be granted but will likely be queued looking forward to the shared lock in the chief approach to get launched.