You won’t be able to do this with meta. All user meta is stored in the meta_value
column of wp_usermeta
, so if you tried to set a constraint on that column you’d just prevent any other user meta from being set.
You won’t be able to do this with meta. All user meta is stored in the meta_value
column of wp_usermeta
, so if you tried to set a constraint on that column you’d just prevent any other user meta from being set.