jackc/pgx · error

invalid length for point

Error message

invalid length for point: %v

What it means

parsePoint parses the textual '(x,y)' point representation (optionally JSON-quoted). This length guard fires when the source is shorter than the 5-byte minimum — even the shortest possible point like '(1,2)' — so the string cannot possibly contain a coordinate pair. It is reached from Point's JSON unmarshaling and text scanning.

Solutions

1. Ensure point values are in '(x,y)' text form (or JSON "(x,y)")
2. Validate JSON input length before parsing
3. Fix custom code producing truncated point strings

When it happens

Trigger: Thrown at pgtype/point.go:49 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: /api/errors/2939e55f52d6f823. Report an issue: GitHub.

Appendix: source

Thrown at pgtype/point.go:49

// ScanPoint implements the [PointScanner] interface.
func (p *Point) ScanPoint(v Point) error {
	*p = v
	return nil
}

// PointValue implements the [PointValuer] interface.
func (p Point) PointValue() (Point, error) {
	return p, nil
}

func parsePoint(src []byte) (*Point, error) {
	if src == nil || bytes.Equal(src, []byte("null")) {
		return &Point{}, nil
	}

	if len(src) < 5 {
		return nil, fmt.Errorf("invalid length for point: %v", len(src))
	}
	if src[0] == '"' && src[len(src)-1] == '"' {
		src = src[1 : len(src)-1]
	}
	sx, sy, found := strings.Cut(string(src[1:len(src)-1]), ",")
	if !found {
		return nil, fmt.Errorf("invalid format for point")
	}

	x, err := strconv.ParseFloat(sx, 64)
	if err != nil {
		return nil, err
	}

	y, err := strconv.ParseFloat(sy, 64)
	if err != nil {
		return nil, err
	}

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