Syntax

IS_IPV4_MAPPED(expr)

Description

Returns 1 if a given a numeric binary string IPv6 address, such as returned by INET6_ATON(), is a valid IPv4-mapped address, otherwise returns 0.

Examples

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