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MikhailBurdukov 2023-11-14 14:22:15 +00:00
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docs/en/operations/backup.md
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@ -406,7 +406,7 @@ RESTORE TABLE data AS data_restored FROM Disk('s3_plain', 'cloud_backup');
:::note
But keep in mind that:
- This disk should not be used for `MergeTree` itself, only for `BACKUP`/`RESTORE`
- If your tables are backed by S3 storage, it doesn't use `CopyObject` calls to copy parts to the destination bucket, instead, it downloads and uploads them, which is very inefficient. Prefer to use `BACKUP ... TO S3(<endpoint>)` syntax for this use-case.
- If your tables are backed by S3 storage and types of the disks are different, it doesn't use `CopyObject` calls to copy parts to the destination bucket, instead, it downloads and uploads them, which is very inefficient. Prefer to use `BACKUP ... TO S3(<endpoint>)` syntax for this use-case.
:::
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