go-redis/redis · error

cannot convert %T to float64

Error message

cannot convert %T to float64

What it means

Error "cannot convert %T to float64" thrown in go-redis/redis.

Source

Thrown at internal/routing/aggregator.go:670

func toFloat64(val interface{}) (float64, error) {
	if val == nil {
		return 0, nil
	}

	switch v := val.(type) {
	case float64:
		return v, nil
	case int:
		return float64(v), nil
	case int32:
		return float64(v), nil
	case int64:
		return float64(v), nil
	case float32:
		return float64(v), nil
	default:
		return 0, fmt.Errorf("cannot convert %T to float64", val)
	}
}

func toBool(val interface{}) (bool, error) {
	if val == nil {
		return false, nil
	}
	switch v := val.(type) {
	case bool:
		return v, nil
	case int64:
		return v != 0, nil
	case int:
		return v != 0, nil
	default:
		return false, fmt.Errorf("cannot convert %T to bool", val)
	}
}

View on GitHub (pinned to 36d97525cd)

Solutions

1. Ensure aggregated values are numeric (int/float/string-number) before float64 conversion
2. Filter or convert non-numeric results first

When it happens

Trigger: Thrown at internal/routing/aggregator.go:670 when the library encounters an invalid state.

Common situations: Validate shard result types ahead of float aggregation.

AI-assisted analysis of go-redis/redis@36d97525cd (2026-08-06). Data as JSON: /data/errors/f7fc26e8204a781a.json. Report an issue: GitHub.