code: func getSQLFields(s DBModel) (ret []string) {
  	fields := getFields(s)
  	table := handleIdentifier(s.TableName())
  	for _, field := range fields {
  		ret = append(ret, table+"."+getColumnName(field))
  	}
  	return
  }
docs: // getSQLFields returns sql-compatible fields that the select query should return
  // skips sql:"-".