MariaDB [test]> flush user_statistics, client_statistics;

MariaDB [test]> select a.empty_queries as user_empty, b.empty_queries as client_empty from information_schema.user_statistics a, information_schema.client_statistics b where a.user = 'root' and b.client= 'localhost';

+------------+--------------+

| user_empty | client_empty |

+------------+--------------+

|          0 |            0 |

+------------+--------------+

MariaDB [test]> select * from mysql.proc;

Empty set (0.00 sec)

MariaDB [test]> select a.empty_queries as user_empty, b.empty_queries as client_empty from information_schema.user_statistics a, information_schema.client_statistics b where a.user = 'root' and b.client= 'localhost';

+------------+--------------+

| user_empty | client_empty |

+------------+--------------+

|          1 |            1 |

+------------+--------------+

MariaDB [test]> ;

ERROR: No query specified

MariaDB [test]> select a.empty_queries as user_empty, b.empty_queries as client_empty from information_schema.user_statistics a, information_schema.client_statistics b where a.user = 'root' and b.client= 'localhost';

+------------+--------------+

| user_empty | client_empty |

+------------+--------------+

|          1 |            1 |

+------------+--------------+

MariaDB [test]> select * from mysql.proc;

Empty set (0.00 sec)

MariaDB [test]> select a.empty_queries as user_empty, b.empty_queries as client_empty from information_schema.user_statistics a, information_schema.client_statistics b where a.user = 'root' and b.client= 'localhost';

+------------+--------------+

| user_empty | client_empty |

+------------+--------------+

|          2 |            2 |

+------------+--------------+