Specifies a role name to be used to develop the dump. this selection brings about pg_dump to difficulty a established purpose rolename
In the event the concerned hosts have improved, the relationship data may need to generally be adjusted. It may also be proper to truncate the concentrate on tables right before initiating a completely new whole desk duplicate. If buyers plan to duplicate First details through refresh they must produce the slot with two_phase = false. After the First sync, the two_phase selection will probably be quickly enabled by the subscriber In the event the membership had been at first produced with two_phase = true solution.
this feature could make no big difference if there isn't any read-publish transactions Lively when pg_dump is started. If read through-create transactions are Lively, the start with the dump might be delayed for an indeterminate length of time. at the time running, efficiency with or without the switch is identical.
parameter is interpreted for a pattern in accordance with the exact same rules utilized by psql's \d commands (see designs), so various extensions will also be selected by writing wildcard people within the sample.
This option disables using greenback quoting for functionality bodies, and forces them for being quoted employing SQL conventional string syntax.
get started the output that has a command to produce the databases by itself and reconnect into the produced database. (having a script of this way, it doesn't matter which database from the destination installation you hook up with just before working the script.
will not hold out eternally to acquire shared desk locks at first from the dump. Instead fail if not able to lock a table within just the required timeout
To conduct a parallel dump, the databases server should assistance synchronized snapshots, a characteristic which was introduced in PostgreSQL nine.2 for Key servers and ten for standbys. With this attribute, database purchasers can assure they see the same information set While they use distinct connections.
A directory structure archive is usually manipulated with conventional เว็บตรงไม่ผ่านเอเย่นต์ Unix equipment; as an example, data files in an uncompressed archive could be compressed with the gzip, lz4, or zstd resources. This structure is compressed by default using gzip and likewise supports parallel dumps.
develop the dump in the required character set encoding. By default, the dump is developed within the database encoding. (Another way to find the identical result's to established the PGCLIENTENCODING atmosphere variable to the desired dump encoding.) The supported encodings are described in segment 24.3.one.
Requesting exceptional locks on databases objects when working a parallel dump could induce the dump to fall short. The rationale would be that the pg_dump leader course of action requests shared locks (accessibility SHARE) over the objects that the employee processes are likely to dump later on in order to make sure that no one deletes them and helps make them go away when the dump is jogging. If another client then requests an special lock with a desk, that lock won't be granted but might be queued looking forward to the shared lock on the leader course of action to become released.
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When utilizing wildcards, watch out to quotation the sample if needed to stop the shell from expanding the wildcards; see illustrations under.
Use this In case you have referential integrity checks or other triggers to the tables that you do not desire to invoke throughout facts restore.
Some installations have a policy in opposition to logging in specifically like a superuser, and utilization of this option allows dumps for being made with out violating the plan.
pg_dump -j works by using various database connections; it connects on the databases the moment While using the chief process and Once more for each worker career. Without the synchronized snapshot attribute, the various employee Work would not be guaranteed to see the same data in Every single relationship, which could lead to an inconsistent backup.