+----------+------------------+---------------+
| count(*) | backup timestamp | operation     |
+----------+------------------+---------------+
| 1000     | 1602011882911    | NA            |
| 500      | 1602011934985    | INSERT/UPDATE |
| 500      | 1602011959575    | DELETE        |
| 500      | 1602011985579    | INSERT/UPDATE |
| 500      | 1602017147573    | INSERT/UPDATE |
| 100      | 1602017147573    | DELETE        |
+----------+------------------+---------------+