jackc/pgx · error

invalid length for Path: %w

Error message

invalid length for Path: %w

What it means

Error "invalid length for Path: %w" thrown in jackc/pgx.

Source

Thrown at pgtype/path.go:186

	return nil
}

type scanPlanBinaryPathToPathScanner struct{}

func (scanPlanBinaryPathToPathScanner) Scan(src []byte, dst any) error {
	scanner := (dst).(PathScanner)

	if src == nil {
		return scanner.ScanPath(Path{})
	}

	r := pgio.NewReader(src)

	closed := r.Byte() == 1
	// Each point is two float64s.
	pointCount := r.Count(16)
	if err := r.Err(); err != nil {
		return fmt.Errorf("invalid length for Path: %w", err)
	}

	points := make([]Vec2, pointCount)
	for i := range points {
		x := r.Uint64()
		y := r.Uint64()
		points[i] = Vec2{math.Float64frombits(x), math.Float64frombits(y)}
	}

	if err := r.Finish(); err != nil {
		return fmt.Errorf("invalid length for Path with %d points: %w", pointCount, err)
	}

	return scanner.ScanPath(Path{
		P:      points,
		Closed: closed,
		Valid:  true,
	})

View on GitHub (pinned to ec1a0befd2)

When it happens

Trigger: Thrown at pgtype/path.go:186 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/c7617d98405e12d9.json. Report an issue: GitHub.