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/interval.go:57

}

// IntervalValue implements the [IntervalValuer] interface.
func (interval Interval) IntervalValue() (Interval, error) {
	return interval, nil
}

// Scan implements the [database/sql.Scanner] interface.
func (interval *Interval) Scan(src any) error {
	if src == nil {
		*interval = Interval{}
		return nil
	}

	if src, ok := src.(string); ok {
		return scanPlanTextAnyToIntervalScanner{}.Scan([]byte(src), interval)
	}

	return fmt.Errorf("cannot scan %T", src)
}

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

	buf, err := IntervalCodec{}.PlanEncode(nil, 0, TextFormatCode, interval).Encode(interval, nil)
	if err != nil {
		return nil, err
	}
	return string(buf), err
}

type IntervalCodec struct{}

func (IntervalCodec) FormatSupported(format int16) bool {

View on GitHub (pinned to ec1a0befd2)

When it happens

Trigger: Thrown at pgtype/interval.go:57 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/e0e2abcefa49a992.json. Report an issue: GitHub.