jackc/pgx · error

unexpected trailing data: %v

Error message

unexpected trailing data: %v

What it means

Error "unexpected trailing data: %v" thrown in jackc/pgx.

Source

Thrown at pgtype/multirange.go:372

		switch r {
		case ',': // skip range separator
		case '}':
			break parseValueLoop
		default:
			buf.UnreadRune()
			value, err := parseRange(buf)
			if err != nil {
				return nil, fmt.Errorf("invalid multirange value: %w", err)
			}
			elements = append(elements, value)
		}
	}

	skipWhitespace(buf)

	if buf.Len() > 0 {
		return nil, fmt.Errorf("unexpected trailing data: %v", buf.String())
	}

	return elements, nil
}

func parseRange(buf *bytes.Buffer) (string, error) {
	s := &bytes.Buffer{}

	boundSepRead := false
	for {
		r, _, err := buf.ReadRune()
		if err != nil {
			return "", err
		}

		switch r {
		case ',', '}':
			if r == ',' && !boundSepRead {

View on GitHub (pinned to ec1a0befd2)

When it happens

Trigger: Thrown at pgtype/multirange.go:372 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of jackc/pgx@ec1a0befd2 (2026-08-04). Data as JSON: /data/errors/5a6a42a5ae6448e1.json. Report an issue: GitHub.