jackc/pgx · error

unknown upper bound type %v

Error message

unknown upper bound type %v

What it means

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

Source

Thrown at pgtype/range_codec.go:231

			return nil, fmt.Errorf("cannot encode %v as element of range", upper)
		}

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

	switch upperType {
	case Exclusive, Unbounded:
		buf = append(buf, ')')
	case Inclusive:
		buf = append(buf, ']')
	default:
		return nil, fmt.Errorf("unknown upper bound type %v", upperType)
	}

	return buf, nil
}

func (c *RangeCodec) PlanScan(m *Map, oid uint32, format int16, target any) ScanPlan {
	switch format {
	case BinaryFormatCode:
		if _, ok := target.(RangeScanner); ok {
			return &scanPlanBinaryRangeToRangeScanner{rc: c, m: m}
		}
	case TextFormatCode:
		if _, ok := target.(RangeScanner); ok {
			return &scanPlanTextRangeToRangeScanner{rc: c, m: m}
		}
	}

	return nil

View on GitHub (pinned to ec1a0befd2)

When it happens

Trigger: Thrown at pgtype/range_codec.go:231 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/b7a448d4a13b1fe4.json. Report an issue: GitHub.