Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections. Defaults for the PGPORT natural environment variable, if set, or a compiled-in default.
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This option is likely to make no distinction if there isn't any examine-compose transactions Energetic when pg_dump is commenced. If study-publish transactions are Lively, the beginning on the dump can be delayed for an indeterminate length of time. after jogging, overall performance with or with no switch is the same.
by far the most flexible output file formats are definitely the “customized” structure (-Fc) and also the “directory” structure (-Fd). They allow for collection and reordering of all archived things, support parallel restoration, and they are compressed by default. The “Listing” structure is the one structure that supports parallel dumps.
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Dump facts as INSERT commands (in lieu of COPY). This can make restoration very gradual; it is mainly useful for earning dumps that may be loaded into non-PostgreSQL databases. Any error throughout restoring will result in only rows which might be A part of the problematic INSERT being dropped, as opposed to your complete table contents.
. The sample is interpreted according to the similar principles as for -n. -N may be เว็บตรง supplied greater than when to exclude schemas matching any of several designs.
Specifies the name of the databases being dumped. If this is simply not specified, the ecosystem variable PGDATABASE is applied. If that is not set, the consumer identify specified to the relationship is utilized.
A directory structure archive is usually manipulated with standard Unix resources; for instance, information within an uncompressed archive could be compressed with the gzip, lz4, or zstd applications. This structure is compressed by default using gzip as well as supports parallel dumps.
under no circumstances issue a password prompt. In case the server involves password authentication along with a password just isn't accessible by other indicates for instance a .pgpass file, the relationship try will are unsuccessful. this feature may be handy in batch Employment and scripts where no consumer is present to enter a password.
ship output to the required file. This parameter can be omitted for file based mostly output formats, where situation the typical output is employed.
pg_dump can be a utility for backing up a PostgreSQL databases. It tends to make regular backups even when the database is getting used concurrently. pg_dump will not block other users accessing the database (readers or writers).
When making use of wildcards, watch out to estimate the sample if necessary to forestall the shell from increasing the wildcards; see Examples below.
to revive from this kind of script, feed it to psql. Script files can be used to reconstruct the databases even on other equipment and also other architectures; with some modifications, even on other SQL databases solutions.
without the need of it the dump might mirror a state which isn't in step with any serial execution in the transactions eventually dedicated. such as, if batch processing approaches are employed, a batch may possibly clearly show as shut from the dump with out all the objects that happen to be during the batch showing.
this selection is never vital, due to the fact pg_dump will instantly prompt for just a password if the server needs password authentication.