MariaDB [enwiki_p]> SELECT NOW() AS time, COUNT(*) AS number_of_subpages FROM page WHERE page_title LIKE "Cite\_pmid/%" AND page_namespace = 10;
+---------------------+--------------------+
| time                | number_of_subpages |
+---------------------+--------------------+
| 2015-12-19 07:32:19 |              37204 |
+---------------------+--------------------+
1 row in set (0.02 sec)