parameter is interpreted as being a sample in accordance with the identical guidelines used by psql's \d commands (see Patterns), so a number of tables can even be picked by creating wildcard figures inside the pattern.
In the case of a parallel dump, the snapshot name defined by this selection is utilised instead of taking a brand new snapshot.
The alternative archive file formats has to be used with pg_restore to rebuild the database. They allow pg_restore to become selective about what on earth is restored, or even to reorder the products ahead of staying restored. The archive file formats are made to be transportable across architectures.
probably the most adaptable output file formats will be the “customized” format (-Fc) and the “directory” structure (-Fd). They allow for variety and reordering of all archived objects, assistance parallel restoration, and therefore are compressed by default. The “Listing” structure is the only real structure that supports parallel dumps.
When dumping rational replication subscriptions, pg_dump will crank out build SUBSCRIPTION instructions that make use of the link = Fake choice, in order that restoring the membership would not make remote connections for making a replication slot or for Original table copy. this way, the dump is usually restored without demanding network entry to the remote servers. it can be then up towards the user to reactivate the subscriptions in an acceptable way.
Output SQL-typical established SESSION AUTHORIZATION commands as opposed to change proprietor instructions สล็อต pg to find out object possession. This helps make the dump much more requirements-suitable, but with regards to the record from the objects while in the dump, may not restore thoroughly.
this feature is useful when needing to synchronize the dump using a sensible replication slot (see Chapter forty nine) or with a concurrent session.
Specifies the name with the databases being dumped. If it's not specified, the ecosystem variable PGDATABASE is applied. If that isn't established, the consumer identify specified for the connection is made use of.
. The pattern is interpreted in accordance with the identical principles as for -t. -T might be supplied a lot more than once to exclude tables matching any of quite a few designs.
hardly ever concern a password prompt. Should the server involves password authentication along with a password will not be readily available by other means for instance a .pgpass file, the connection endeavor will fall short. This option can be practical in batch Careers and scripts the place no consumer is current to enter a password.
This may be practical when restoring details with a server exactly where rows don't constantly tumble to the identical partitions because they did on the original server. which could transpire, for example, if the partitioning column is of form textual content and The 2 programs have distinctive definitions from the collation used to kind the partitioning column.
This is certainly the same as the -t/--desk possibility, other than that In addition, it features any partitions or inheritance youngster tables in the desk(s) matching the sample
never output commands to established TOAST compression approaches. With this feature, all columns might be restored Together with the default compression location.
to revive from this kind of script, feed it to psql. Script data files can be used to reconstruct the databases even on other machines and various architectures; with some modifications, even on other SQL database products and solutions.
with no it the dump may perhaps replicate a point out which isn't in keeping with any serial execution in the transactions finally fully commited. such as, if batch processing strategies are used, a batch may possibly demonstrate as shut from the dump without having every one of the items that are in the batch showing up.
When working with wildcards, be cautious to estimate the pattern if necessary to forestall the shell from expanding the wildcards; see illustrations beneath.