Is this a problem? Flags in unicode are defined by several special characters. The flag of Scotland isn't really a single character, it's "<waving flag><tag g><tag b><tag s><tag c><tag t><cancel>".
All of these characters are multi byte combinations. The hex for the flag is not a single, super wide character, it's 0xF09F8FB4 0xF3A081A7 0xF3A081A2 0xF3A081B3 0xF3A081A3 0xF3A081B4 0xF3A081BF. You might get some weird results if you take substrings from that, but it won't be a problem for the backing database store; each separate "binary character" is a four byte sequence (as denoted by the 0xF at the front of the number).
All of these characters are multi byte combinations. The hex for the flag is not a single, super wide character, it's 0xF09F8FB4 0xF3A081A7 0xF3A081A2 0xF3A081B3 0xF3A081A3 0xF3A081B4 0xF3A081BF. You might get some weird results if you take substrings from that, but it won't be a problem for the backing database store; each separate "binary character" is a four byte sequence (as denoted by the 0xF at the front of the number).