My typical pattern is to use pointer types as a pseudo-optional type. There is the additional cost of dealing with a pointer on the Go side though, which can ge

My typical pattern is to use pointer types as a pseudo-optional type. There is the additional cost of dealing with a pointer on the Go side though, which can get cumbersome at times. `database/sql` does have an interface which lets you define your own marshaling code though. Using it is very simple and would let you marshal an all-zero UUID into NULL easily enough.