...
MariaDB [policyadmin]> select count(1) from pdpstatistics;
+----------+
| count(1) |
+----------+
| 24767 |
+----------+
1 row in set (0.100 sec)
MariaDB [policyadmin]> select max(timeStamp) from pdpstatistics;
+---------------------+
| max(timeStamp) |
+---------------------+
| 2021-08-19 11:50:07 |
+---------------------+
1 row in set (0.453 sec)