br: refine an expression (pingcap#3303) (pingcap#3312)

Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
ti-chi-bot · Jul 17, 2020 · 9a5c3a9 · 9a5c3a9
1 parent 82c3c4f
commit 9a5c3a9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/br/backup-and-restore-tool.md b/br/backup-and-restore-tool.md
@@ -331,7 +331,7 @@ If you want to back up incrementally, you only need to specify the **last backup
 The incremental backup has two limitations:
 
 - The incremental backup needs to be under a different path from the previous full backup.
-- No GC (Garbage Collection) happens between the start time of the incremental backup and `lastbackupts`.
+- GC (Garbage Collection) safepoint must be before the `lastbackupts`.
 
 To back up the incremental data between `(LAST_BACKUP_TS, current PD timestamp]`, execute the following command: