jackc/pgx · error

cannot scan %T

Error message

cannot scan %T

What it means

Error "cannot scan %T" thrown in jackc/pgx.

Source

Thrown at pgtype/int.go:76

	var n int64

	switch src := src.(type) {
	case int64:
		n = src
	case string:
		var err error
		n, err = strconv.ParseInt(src, 10, 16)
		if err != nil {
			return err
		}
	case []byte:
		var err error
		n, err = strconv.ParseInt(string(src), 10, 16)
		if err != nil {
			return err
		}
	default:
		return fmt.Errorf("cannot scan %T", src)
	}

	if n < math.MinInt16 {
		return fmt.Errorf("%d is less than minimum value for Int2", n)
	}
	if n > math.MaxInt16 {
		return fmt.Errorf("%d is greater than maximum value for Int2", n)
	}
	*dst = Int2{Int16: int16(n), Valid: true}

	return nil
}

// Value implements the [database/sql/driver.Valuer] interface.
func (src Int2) Value() (driver.Value, error) {
	if !src.Valid {
		return nil, nil
	}

View on GitHub (pinned to ec1a0befd2)

When it happens

Trigger: Thrown at pgtype/int.go:76 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/7bb5b476c4095988.json. Report an issue: GitHub.