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restore_backup(backup_name=, restore_objects_map=None, datasource_name=None, options=)[source]

Restores database objects from a backup accessible via the data source specified by input parameter datasource_name.

Parameters

backup_name (str) –

Name of the backup to restore from, which must refer to an existing backup. The default value is ‘’.

restore_objects_map (dict of str to str) –

Map of database objects to be restored from the backup. Allowed keys are:

datasource_name (str) –

Data source through which the backup will be restored.

options (dict of str to str) –

Optional parameters. Allowed keys are:

  • backup_id – ID of the snapshot to restore. Leave empty to restore the most recent snapshot in the backup. The default value is ‘’.

  • checksum – Whether or not to verify checksums for backup files when restoring. Allowed values are:

    • true

    • false

    The default value is ‘false’.

  • create_schema_if_not_exist – Behavior to apply when the schema containing any database object to restore does not already exist. Allowed values are:

    • true – If the schema containing any restored object does not exist, create it automatically.

    • false – If the schema containing any restored object does not exist, return an error.

    The default value is ‘true’.

  • ddl_only – Behavior to apply when restoring tables. Allowed values are:

    • true – Restore table DDL, but do not restore data.

    • false – Restore tables and their data.

    The default value is ‘false’.

  • dry_run – Whether or not to perform a dry run of the restoration operation. Allowed values are:

    • true

    • false

    The default value is ‘false’.

  • restore_subscriptions – Behavior to apply when restoring datasource subscriptions on tables. Allowed values are:

    • resume – Resume subscriptions that were active when the backup was made.

    • pause – Pause subscriptions that were active when the backup was made.

    • cancel – Cancel active subscriptions.

    The default value is ‘resume’.

  • reingest – Behavior to apply when restoring table data. Allowed values are:

    • true – Restore table data by re-ingesting it. This is the default behavior if the cluster topology differs from that of the contained backup.

    • false – Restore the persisted data files directly.

    The default value is ‘false’.

  • renamed_objects_schema – If the restore_policy is rename, use this schema for relocated existing objects instead of the default generated one. The default value is ‘’.

  • restore_all_permissions – Whether or not all permissions of restored principals should be restored or scoped to the restored objects. Allowed values are:

    • true – Restore all permissions.

    • false – Restore only permissions on restored objects.

    The default value is ‘false’.

  • restore_policy – Behavior to apply when any database object to restore already exists. Allowed values are:

    • none – If an object to be restored already exists with the same name, abort and return error.

    • replace – If an object to be restored already exists with the same name, replace it with the backup version.

    • rename – If an object to be restored already exists with the same name, move that existing one to the schema specified by renamed_objects_schema. This policy does not apply to non-schema objects.

    The default value is ‘none’.

  • target_schema_map – Restore schema-based objects to alternate schema. Value is a comma delimitted list of key:value pairs mapping the original (source) schema name as it exists in the backup to a target (destination) schema namespace: “src: dst [, src: dst [, …]]”. Note that schema names are case sensitive and must adhere to the database schema naming criteria. The default value is ‘’.

The default value is an empty dict ( ).

Returns

A dict with the following entries–

backup_name (str) –

Value of input parameter backup_name.

backup_id (long) –

ID of the snapshot that was restored.

restored_bytes (long) –

Total size of data restored from backup.

restored_files (long) –

Total number of files restored from backup.

restored_records (long) –

Total number of records restored from backup.

restored_objects (dict of str to str) –

Database objects that were successfully restored and their associated types.

renamed_objects (dict of str to str) –

Original and new names of database objects that were successfully restored and their associated types.

failed_objects (dict of str to str) –

Database objects that failed to be restored and their associated types.

info (dict of str to str) –

Additional information.