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			31 lines
		
	
	
		
			454 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			31 lines
		
	
	
		
			454 B
		
	
	
	
		
			Go
		
	
	
	
	
	
| package main
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| 
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| import (
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| 	"context"
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| 	"fmt"
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| 
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| 	"github.com/go-redis/redis/v9"
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| )
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| 
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| func main() {
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| 	ctx := context.Background()
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| 
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| 	rdb := redis.NewClient(&redis.Options{
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| 		Addr: ":6379",
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| 	})
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| 	_ = rdb.FlushDB(ctx).Err()
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| 
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| 	for i := 0; i < 10; i++ {
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| 		if err := rdb.PFAdd(ctx, "myset", fmt.Sprint(i)).Err(); err != nil {
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| 			panic(err)
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| 		}
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| 	}
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| 
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| 	card, err := rdb.PFCount(ctx, "myset").Result()
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| 	if err != nil {
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| 		panic(err)
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| 	}
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| 
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| 	fmt.Println("set cardinality", card)
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| }
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