func (f *ResultField) TypeLength() (int64, bool) {
	if f.tc.isVariableLength() {
		return int64(f.length), true
	}
	return 0, false
}
func (f *ResultField) TypeLength() (int64, bool) {
	if f.tc.isVariableLength() {
		return int64(f.length), true
	}
	return 0, false
}
func ( f * ResultField ) TypeLength ( ) ( int64 , bool ) { if f . tc . isVariableLength ( ) { return int64 ( f . length ) , true } return 0 , false }
// TypeLength returns the type length of the field.
// see https://golang.org/pkg/database/sql/driver/#RowsColumnTypeLength
TypeLength returns the type length of the field . see https : // golang . org / pkg / database / sql / driver / #RowsColumnTypeLength