redis/example/hll/main.go

31 lines
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2022-03-17 15:30:55 +03:00
package main
import (
"context"
"fmt"
"github.com/go-redis/redis/v8"
)
func main() {
ctx := context.Background()
rdb := redis.NewClient(&redis.Options{
Addr: ":6379",
})
_ = rdb.FlushDB(ctx).Err()
for i := 0; i < 10; i++ {
if err := rdb.PFAdd(ctx, "myset", fmt.Sprint(i)).Err(); err != nil {
panic(err)
}
}
card, err := rdb.PFCount(ctx, "myset").Result()
if err != nil {
panic(err)
}
fmt.Println("set cardinality", card)
}