IPV4_MAPPED(INET6_ATON('::10.0.1.1')) |
+------------------------------------------+
|                                        0 |
+------------------------------------------+

SELECT IS_IPV4_MAPPED(INET6_ATON('::ffff:10.0.1.1'));
+-----------------------------------------------+
| IS_IPV4_MAPPED(INET6_ATON('::ffff:10.0.1.1')) |
+-----------------------------------------------+
|                                             1 |
+-----------------------------------------------+

URL: https://mariadb.com/kb/en/is_ipv4_mapped/https://mariadb.com/kb/en/is_ipv4_mapped/