pgadmin4/docs/en_US/restore_dialog.rst
2023-07-13 13:01:48 +05:30

186 lines
7.7 KiB
ReStructuredText
Raw Permalink Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

.. _restore_dialog:
***********************
`Restore Dialog`:index:
***********************
The *Restore* dialog provides an easy way to use a Custom, tar, or Directory
format backup taken with the pgAdmin *Backup* dialog to recreate a database or
database object. The *Backup* dialog invokes options of the pg_dump client
utility; the *Restore* dialog invokes options of the pg_restore client utility.
You can use the *Query Tool* to play back the script created during a plain-text
backup made with the *Backup* dialog. For more information about backing up or
restoring, please refer to the documentation for
`pg_dump <https://www.postgresql.org/docs/current/app-pgdump.html>`_ or
`pg_restore <https://www.postgresql.org/docs/current/app-pgrestore.html>`_.
.. image:: images/restore_general.png
:alt: Restore dialog general tab
:align: center
Use the fields on the *General* tab to specify general information about the
restore process:
* Use the drop-down listbox in the *Format* field to select the format of your
backup file.
* Select *Custom or tar* to restore from a custom archive file to create a
copy of the backed-up object.
* Select *Directory* to restore from a compressed directory-format archive.
* Enter the complete path to the backup file in the *Filename* field.
Optionally, select the *Browse* icon (ellipsis) to the right to navigate
into a directory and select the file that contains the archive.
* Use the *Number of Jobs* field to specify if pg_restore should use multiple
(concurrent) jobs to process the restore. Each job uses a separate connection
to the server.
* Use the drop-down listbox next to *Rolename* to specify the role that will be
used to authenticate with the server during the restore process.
Click the *Data Options* tab to continue. Use the fields in the *Data Options*
tab to provide options related to data or pgAdmin objects that correspond to *pg_restore*.
.. image:: images/restore_sections.png
:alt: Restore dialog options section
:align: center
* Move switches in the **Sections** field box to specify the content that will be
restored:
* Move the switch next to *Pre-data* towards right position to restore all
data definition items not included in the data or post-data item lists.
* Move the switch next to *Data* towards right position to restore actual
table data, large-object contents, and sequence values.
* Move the switch next to *Post-data* towards right position position to restore
definitions of indexes, triggers, rules, and constraints (other than
validated check constraints).
.. image:: images/restore_objects.png
:alt: Restore dialog sections section
:align: center
* Move switches in the **Type of objects** field box to specify the objects that
will be restored:
* Move the switch next to *Only data* towards right position to limit the
restoration to data.
* Move the switch next to *Only schema* to limit the restoration to
schema-level database objects.
.. image:: images/restore_do_not_save.png
:alt: Restore dialog do not save section
:align: center
* Move switches in the **Do not save** box to specify which objects will not
be restored:
* Move the switch next to *Owner* towards right position to exclude commands
that set object ownership.
* Move the switch next to *Privileges* towards right position to exclude
commands that create access privileges.
* Move the switch next to *Tablespaces* towards right position to exclude
tablespaces.
* Move the switch next to *Comments* towards right position to exclude
commands that set the comments. **Note:** This option is visible only for
database server greater than or equal to 11.
* Move the switch next to *Publications* towards right position to exclude
publications.
* Move the switch next to *Subscriptions* towards right position to exclude
subscriptions.
* Move the switch next to *Security labels* towards right position to exclude
Security labels.
* Move the switch next to *Table access methods* towards right position to exclude
Table access methods. **Note:** This option is visible only for
database server greater than or equal to 15.
.. image:: images/restore_queries.png
:alt: Restore dialog queries section
:align: center
Click the *Query Options* tab to continue. Use these additional fields to specify
the type of statements that should be included in the restore:
* Move the switch next to *Include CREATE DATABASE statement* towards right position
to include a command that creates a new database before performing the restore.
* Move the switch next to *Clean before restore* towards right position to
drop each existing database object (and data) before restoring.
* Move the switch next to *Include IF EXISTS clause* towards right
position to add an IF EXISTS clause to drop databases and other objects.
This option is not valid unless *Clean before restore* is also set.
* Move the switch next to *Single transaction* towards right position to
execute the restore as a single transaction (that is, wrap the emitted
commands in *BEGIN/COMMIT*). This ensures that either all the commands
complete successfully, or no changes are applied. This option implies
*--exit-on-error*.
.. image:: images/restore_table.png
:alt: Restore dialog tables section
:align: center
Click the *Table Options* tab to continue. Use the fields in the *Table Options*
tab related to tables that should be included in the backup.
* Move the switch next to *Enable row security* towards right position to
set row_security to on instead, allowing the user to dump the parts of the
contents of the table that they have access to. This option is relevant
only when dumping the contents of a table which has row security.
* Move the switch next to *No data for failed tables* towards right position
to ignore data that fails a trigger.
Click the *Options* tab to continue. Use the fields in the *Options*
tab to provide other restore options.
.. image:: images/restore_miscellaneous.png
:alt: Restore dialog miscellaneous section
:align: center
* Move switches in the **Disable** box to specify the type of statements that
should be excluded from the restore:
* Move the switch next to *Triggers* (active when creating a data-only
restore) towards right position to include commands that will disable
triggers on the target table while the data is being loaded.
* Move switches in the **Miscellaneous/Behavior** box to specify
miscellaneous restore options:
* Move the switch next to *Verbose messages* towards left to instruct
*pg_restore* to exclude verbose messages.
* Move the switch next to *Use SET SESSION AUTHORIZATION* towards right position
to include a statement that will use a SET SESSION AUTHORIZATION
command to determine object ownership (instead of an ALTER OWNER command).
* Move the switch next to *Exit on error* towards right position to instruct
*pg_restore* to exit restore if there is an error in sending SQL commands.
The default is to continue and to display a count of errors at the end of
the restore.
* Use the *Exclude schema* field to not dump schemas whose name matches
pattern.
When youve specified the details that will be incorporated into the pg_restore
command, click the *Restore* button to start the process, or click the *Cancel*
button to exit without saving your work. A popup will confirm if the restore is
successful.
pgAdmin will run the restore process in background. You can view all the background
process with there running status and logs on the :ref:`Processes <processes>`
tab