Output a directory-structure archive well suited for enter into pg_restore. this tends to make a directory with a person file for every table and large item being dumped, as well as a so-identified as Table of Contents file describing the dumped objects in the device-readable structure that pg_restore can examine.
nonetheless, pg_dump will squander a relationship try getting out that the server would like a password. sometimes it is actually value typing -W to stay away from the added connection endeavor.
Output a custom-structure archive appropriate for input into pg_restore. Together with the directory output format, this is among the most adaptable output structure in that it permits manual selection and reordering of archived goods for the duration of restore. This format is usually compressed by default.
It will likely not dump the contents of sights or materialized views, plus the contents of overseas tables will only be dumped In the event the corresponding international server is specified with --incorporate-foreign-info.
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will not wait forever to obtain shared desk locks at the start in the dump. as an alternative are unsuccessful if struggling to lock a desk in the desired timeout
To carry out a parallel dump, the databases server has to assist synchronized snapshots, a function that was released in PostgreSQL nine.2 for primary servers and 10 for standbys. using this attribute, database shoppers can assure they see the exact same details established Regardless that they use distinctive connections.
A Listing structure archive is often manipulated with conventional Unix resources; by way of example, information in an uncompressed archive is often compressed Using the gzip, lz4, or zstd resources. This format is compressed by default working with gzip and in addition supports parallel dumps.
Therefore another access to the desk won't be granted both and can queue once the exclusive lock ask for. This incorporates the worker course of action seeking to dump the table. with none safeguards This could be a traditional deadlock problem. To detect this conflict, the pg_dump employee system requests A further shared lock using the NOWAIT selection. If your worker method is not really granted this shared lock, any individual else have to have asked for an distinctive lock in the meantime and there's no way to carry on Together with the dump, so pg_dump has no alternative but to abort the dump.
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When dumping information to get a desk partition, make the COPY or INSERT statements goal the root of the partitioning hierarchy that contains it, as opposed to the partition itself. This will cause the suitable partition for being re-established for every row when the data is loaded.
never output commands to set TOAST compression procedures. With this feature, all columns will probably be restored Along with the default compression setting.
tend not to output commands to choose tablespaces. With this selection, all objects will likely be developed in whichever tablespace would be the default throughout restore.
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this feature is relevant only when dumping the contents of a desk which has row security. By default, pg_dump will set row_security to off, to make sure that all data is dumped from the table.