Is it possible to execute Pipeline read commands on slaves?

[almostinf]

Configuration:

We use this client configuration for Redis (redis v8, v8.11.5):

redis.NewUniversalClient(&redis.UniversalOptions{
        MasterName: config.MasterName,
        Addrs: config.Addrs,
        Username: config.Username,
        Password: config.Password,
        SentinelPassword: config.SentinelPassword,
        SentinelUsername: config.SentinelUsername,
        DialTimeout: config.DialTimeout,
        ReadTimeout: config.ReadTimeout,
        WriteTimeout: config.WriteTimeout,
        MaxRetries: config.MaxRetries,
        ReadOnly: config.ReadOnly,
        RouteByLatency: config.RouteByLatency,
        RouteRandomly: config.RouteRandomly,
})

With ReadOnly and RouteRandomly enabled.

Problem:

The code was using ZRangeByScoreWithScores command in a loop, we decided to move this command to Pipeline and encountered performance degradation due to all Exec commands going to master only. As far as I know, not all Redis libraries support the ability to execute Exec commands on slaves, is there any way to achieve this functionality in go-redis?

Before:

for _, metric := range metrics {
	rng := &redis.ZRangeBy{Min: strconv.FormatInt(from, 10), Max: strconv.FormatInt(until, 10)}
	result := client.ZRangeByScoreWithScores(ctx, metricDataKey(metric), rng)
	resultByMetrics = append(resultByMetrics, result)
}

After:

pipe := client.TxPipeline()
for _, metric := range metrics {
	rng := &redis.ZRangeBy{Min: strconv.FormatInt(from, 10), Max: strconv.FormatInt(until, 10)}
	pipe.ZRangeByScoreWithScores(ctx, metricDataKey(metric), rng)
}

[almostinf]

Maybe you know, @ofekshenawa or @monkey92t ?