About changing the API struct, e.g: muti-return with err.

[atlas-comstock]

	iter := query.Iter(conn)
	if iter.Error() != nil {
		log.Panicln(iter.Error())
	}

I think it would be better that iter use muti-return val, which is golang API usually do.

	iter, err := query.Iter(conn)
	if err != nil {
		log.Panicln(err)
	}

[atlas-comstock]

@m1nor How do u think about it?

[m1nor]

The correct example is in README

for iter.Scan(&name, &date) {
    //
}
if iter.Error() != nil {
    log.Panicln(iter.Error())
}

Errors in Scan will also be accessible via iter.Error(). I don't think we should break compatibility to separate Iter creation errors and Scan errors.

I'm not closing this issue because it really should be discussed.