jackc/pgx · error

unknown lower bound type %v

Error message

unknown lower bound type %v

What it means

Error "unknown lower bound type %v" thrown in jackc/pgx.

Source

Thrown at pgtype/range_codec.go:182

func (plan *encodePlanRangeCodecRangeValuerToText) Encode(value any, buf []byte) (newBuf []byte, err error) {
	getter := value.(RangeValuer)

	if getter.IsNull() {
		return nil, nil
	}

	lowerType, upperType := getter.BoundTypes()
	lower, upper := getter.Bounds()

	switch lowerType {
	case Exclusive, Unbounded:
		buf = append(buf, '(')
	case Inclusive:
		buf = append(buf, '[')
	case Empty:
		return append(buf, "empty"...), nil
	default:
		return nil, fmt.Errorf("unknown lower bound type %v", lowerType)
	}

	if lowerType != Unbounded {
		if lower == nil {
			return nil, fmt.Errorf("Lower cannot be NULL unless LowerType is Unbounded")
		}

		lowerPlan := plan.m.PlanEncode(plan.rc.ElementType.OID, TextFormatCode, lower)
		if lowerPlan == nil {
			return nil, fmt.Errorf("cannot encode %v as element of range", lower)
		}

		buf, err = lowerPlan.Encode(lower, buf)
		if err != nil {
			return nil, fmt.Errorf("failed to encode %v as element of range: %w", lower, err)
		}
		if buf == nil {
			return nil, fmt.Errorf("Lower cannot be NULL unless LowerType is Unbounded")

View on GitHub (pinned to ec1a0befd2)

When it happens

Trigger: Thrown at pgtype/range_codec.go:182 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/06e6279c5dcf8522.json. Report an issue: GitHub.