Need a way to "omitempty" about schema

[kisielk]

You could just set the field to an empty string prior to decoding.

The behaviour is pretty consistent with how other decoding modules such as encoding/json and encoding/xml work.

[sheki]

I agree that this behaves like json/encoding, but I still think having a an additional flag will be useful

[kisielk]

Sorry, I don't agree, you can already achieve what you need without adding any additional flags to the package by just setting the field to the default value you want before decoding.