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chore: add hll example
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@vmihailenco
vmihailenco committed Mar 17, 2022
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9 changes: 9 additions & 0 deletions example/hll/README.md
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# Redis HyperLogLog example

To run this example:

```shell
go run .
```

See [Using HyperLogLog command with go-redis](https://redis.uptrace.dev/guide/hll.html) for details.
7 changes: 7 additions & 0 deletions example/hll/go.mod
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module github.com/go-redis/redis/example/hll

go 1.14

replace github.com/go-redis/redis/v8 => ../..

require github.com/go-redis/redis/v8 v8.0.0-00010101000000-000000000000
110 changes: 110 additions & 0 deletions example/hll/go.sum
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github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
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30 changes: 30 additions & 0 deletions example/hll/main.go
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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)
}

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