I encapsulate db rows with a struct

type myThingy {
    col1 string
    col2 int
}

but when writing a query function, I have to type out the name of the column

queryThingy(col1Val string) {
    return db.queryf("SELECT * WHERE col1==%s", col1Val)
}

I would much rather have some sort of const to use instead

queryThingy(colKey string, colVal string) {
    return db.queryf("SELECT * WHERE %s==%s",colKey, colVal)
}

however since I already have myThingy type, I would just like to take the struct field names and turn it into a set of constants that i can use to specify the column names in my db

obviously this is a toy example but the pattern would be useful to me