code: func (a *ArgType) colname(col *models.Column) string {
  	if a.EscapeColumnNames {
  		return a.Loader.Escape(ColumnEsc, col.ColumnName)
  	}
  
  	return col.ColumnName
  }
docs: // colname returns the ColumnName of col, optionally escaping it if
  // ArgType.EscapeColumnNames is toggled.