method

RedisClient.pfmerge

destkey: KeyLike,

...sourcekeys: KeyLike[]

): Promise<'OK'>;

Merge multiple HyperLogLog values into a single one

@param destkey

The destination key

@param sourcekeys

The source HyperLogLog keys

@returns

Promise that resolves with "OK"

await redis.pfadd("hll1", "a");
await redis.pfadd("hll2", "b");
await redis.pfmerge("merged", "hll1", "hll2");
await redis.pfcount("merged"); // 2

Referenced types