diff --git a/faq/backup-and-restore-faq.md b/faq/backup-and-restore-faq.md index e7f705f35026a..09c3875e493ed 100644 --- a/faq/backup-and-restore-faq.md +++ b/faq/backup-and-restore-faq.md @@ -330,3 +330,11 @@ If you do not execute `ANALYZE` on the table, TiDB will fail to select the optim ### Does BR back up the `SHARD_ROW_ID_BITS` and `PRE_SPLIT_REGIONS` information of a table? Does the restored table have multiple Regions? Yes. BR backs up the [`SHARD_ROW_ID_BITS` and `PRE_SPLIT_REGIONS`](/sql-statements/sql-statement-split-region.md#pre_split_regions) information of a table. The data of the restored table is also split into multiple Regions. + +## If the recovery process is interrupted, is it necessary to delete the already recovered data and start the recovery again? + +No, it is not necessary. Starting from v7.1.0, BR supports resuming data from a breakpoint. If the recovery is interrupted due to unexpected circumstances, simply restart the recovery task, and it will resume from where it left off. + +## After the recovery is complete, can I delete a specific table and then recover it again? + +Yes, after deleting a specific table, you can recover it again. But note that, you can only recover tables that are deleted using the `DROP TABLE` or `TRUNCATE TABLE` statement, not the `DELETE FROM` statement. This is because `DELETE FROM` only updates the MVCC version to mark the data to be deleted, and the actual data deletion occurs after GC.