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zeekay
6994cf05aa
We do not use Redis. The client was a go-redis fork and still said so
everywhere: `package redis`, `redis.NewClient`, `redis://`, `extra/redisotel`.
Consumers wrote `redis.Client` against a Valkey-backed store called KV.
package redis -> package kv (93 decls)
redis.X -> kv.X (2,794 call sites)
"redis: …" errors -> "kv: …" (206)
extra/redis{otel,cmd,prometheus,census} -> extra/kv{otel,cmd,prometheus,census}
redis:// , rediss:// -> kv:// , kvs:// (ParseURL)
Redis*/*Redis* idents -> KV*/*KV*
REDIS_VERSION, REDIS_ENDPOINTS_CONFIG_PATH -> KV_*
I previously argued this rename was unsafe because much of it was "wire
contract". That was wrong, and the categorisation shows why: RESP command names
are GET/SET/HSET — they never contain the word. Of 5,771 occurrences only two
kinds were server-visible at all: the ParseURL scheme (we choose what we pass;
our configs already use kv://) and the CLIENT SETINFO lib-name label, which the
server merely records. Nothing here changes a byte of protocol.
Two things deliberately keep the old spelling:
RediSearch — names a specific external module the FT.* commands map to.
StoreDist — contains the letters by accident (sto-reDis-t), not the word.
Breaking for consumers by design: every import site must move redis.X -> kv.X.
Minor bump, never a major — this module stays v9 forever.
78 lines
1.2 KiB
Go
78 lines
1.2 KiB
Go
// EXAMPLE: topk_tutorial
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// HIDE_START
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package example_commands_test
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import (
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"context"
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"fmt"
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"github.com/hanzokv/go/v9"
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)
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// HIDE_END
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func ExampleClient_topk() {
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ctx := context.Background()
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rdb := kv.NewClient(&kv.Options{
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Addr: "localhost:6379",
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Password: "", // no password docs
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DB: 0, // use default DB
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})
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// REMOVE_START
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// start with fresh database
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rdb.FlushDB(ctx)
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rdb.Del(ctx, "bikes:keywords")
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// REMOVE_END
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// STEP_START topk
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res1, err := rdb.TopKReserve(ctx, "bikes:keywords", 5).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(res1) // >>> OK
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res2, err := rdb.TopKAdd(ctx, "bikes:keywords",
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"store",
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"seat",
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"handlebars",
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"handles",
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"pedals",
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"tires",
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"store",
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"seat",
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).Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(res2) // >>> [ handlebars ]
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res3, err := rdb.TopKList(ctx, "bikes:keywords").Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(res3) // [store seat pedals tires handles]
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res4, err := rdb.TopKQuery(ctx, "bikes:keywords", "store", "handlebars").Result()
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if err != nil {
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panic(err)
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}
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fmt.Println(res4) // [true false]
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// STEP_END
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// Output:
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// OK
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// [ handlebars ]
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// [store seat pedals tires handles]
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// [true false]
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}
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