mirror of
https://github.com/hanzokv/go.git
synced 2026-09-24 00:31:51 +00:00
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.
262 lines
4.3 KiB
Go
262 lines
4.3 KiB
Go
// EXAMPLE: tdigest_tutorial
|
|
// HIDE_START
|
|
package example_commands_test
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"github.com/hanzokv/go/v9"
|
|
)
|
|
|
|
// HIDE_END
|
|
|
|
func ExampleClient_tdigstart() {
|
|
ctx := context.Background()
|
|
|
|
rdb := kv.NewClient(&kv.Options{
|
|
Addr: "localhost:6379",
|
|
Password: "", // no password docs
|
|
DB: 0, // use default DB
|
|
})
|
|
|
|
// REMOVE_START
|
|
// start with fresh database
|
|
rdb.FlushDB(ctx)
|
|
rdb.Del(ctx, "racer_ages", "bikes:sales")
|
|
// REMOVE_END
|
|
|
|
// STEP_START tdig_start
|
|
res1, err := rdb.TDigestCreate(ctx, "bikes:sales").Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
fmt.Println(res1) // >>> OK
|
|
|
|
res2, err := rdb.TDigestAdd(ctx, "bikes:sales", 21).Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
fmt.Println(res2) // >>> OK
|
|
|
|
res3, err := rdb.TDigestAdd(ctx, "bikes:sales",
|
|
150, 95, 75, 34,
|
|
).Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
fmt.Println(res3) // >>> OK
|
|
|
|
// STEP_END
|
|
|
|
// Output:
|
|
// OK
|
|
// OK
|
|
// OK
|
|
}
|
|
|
|
func ExampleClient_tdigcdf() {
|
|
ctx := context.Background()
|
|
|
|
rdb := kv.NewClient(&kv.Options{
|
|
Addr: "localhost:6379",
|
|
Password: "", // no password docs
|
|
DB: 0, // use default DB
|
|
})
|
|
|
|
// REMOVE_START
|
|
// start with fresh database
|
|
rdb.FlushDB(ctx)
|
|
rdb.Del(ctx, "racer_ages", "bikes:sales")
|
|
// REMOVE_END
|
|
|
|
// STEP_START tdig_cdf
|
|
res4, err := rdb.TDigestCreate(ctx, "racer_ages").Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
fmt.Println(res4) // >>> OK
|
|
|
|
res5, err := rdb.TDigestAdd(ctx, "racer_ages",
|
|
45.88, 44.2, 58.03, 19.76, 39.84, 69.28,
|
|
50.97, 25.41, 19.27, 85.71, 42.63,
|
|
).Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
fmt.Println(res5) // >>> OK
|
|
|
|
res6, err := rdb.TDigestRank(ctx, "racer_ages", 50).Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
fmt.Println(res6) // >>> [7]
|
|
|
|
res7, err := rdb.TDigestRank(ctx, "racer_ages", 50, 40).Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
fmt.Println(res7) // >>> [7 4]
|
|
// STEP_END
|
|
|
|
// Output:
|
|
// OK
|
|
// OK
|
|
// [7]
|
|
// [7 4]
|
|
}
|
|
|
|
func ExampleClient_tdigquant() {
|
|
ctx := context.Background()
|
|
|
|
rdb := kv.NewClient(&kv.Options{
|
|
Addr: "localhost:6379",
|
|
Password: "", // no password docs
|
|
DB: 0, // use default DB
|
|
})
|
|
|
|
// REMOVE_START
|
|
// start with fresh database
|
|
rdb.FlushDB(ctx)
|
|
rdb.Del(ctx, "racer_ages")
|
|
// REMOVE_END
|
|
|
|
_, err := rdb.TDigestCreate(ctx, "racer_ages").Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
_, err = rdb.TDigestAdd(ctx, "racer_ages",
|
|
45.88, 44.2, 58.03, 19.76, 39.84, 69.28,
|
|
50.97, 25.41, 19.27, 85.71, 42.63,
|
|
).Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
// STEP_START tdig_quant
|
|
res8, err := rdb.TDigestQuantile(ctx, "racer_ages", 0.5).Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
fmt.Println(res8) // >>> [44.2]
|
|
|
|
res9, err := rdb.TDigestByRank(ctx, "racer_ages", 4).Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
fmt.Println(res9) // >>> [42.63]
|
|
// STEP_END
|
|
|
|
// Output:
|
|
// [44.2]
|
|
// [42.63]
|
|
}
|
|
|
|
func ExampleClient_tdigmin() {
|
|
ctx := context.Background()
|
|
|
|
rdb := kv.NewClient(&kv.Options{
|
|
Addr: "localhost:6379",
|
|
Password: "", // no password docs
|
|
DB: 0, // use default DB
|
|
})
|
|
|
|
// REMOVE_START
|
|
// start with fresh database
|
|
rdb.FlushDB(ctx)
|
|
rdb.Del(ctx, "racer_ages")
|
|
// REMOVE_END
|
|
|
|
_, err := rdb.TDigestCreate(ctx, "racer_ages").Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
_, err = rdb.TDigestAdd(ctx, "racer_ages",
|
|
45.88, 44.2, 58.03, 19.76, 39.84, 69.28,
|
|
50.97, 25.41, 19.27, 85.71, 42.63,
|
|
).Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
// STEP_START tdig_min
|
|
res10, err := rdb.TDigestMin(ctx, "racer_ages").Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
fmt.Println(res10) // >>> 19.27
|
|
|
|
res11, err := rdb.TDigestMax(ctx, "racer_ages").Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
fmt.Println(res11) // >>> 85.71
|
|
// STEP_END
|
|
|
|
// Output:
|
|
// 19.27
|
|
// 85.71
|
|
}
|
|
|
|
func ExampleClient_tdigreset() {
|
|
ctx := context.Background()
|
|
|
|
rdb := kv.NewClient(&kv.Options{
|
|
Addr: "localhost:6379",
|
|
Password: "", // no password docs
|
|
DB: 0, // use default DB
|
|
})
|
|
|
|
// REMOVE_START
|
|
// start with fresh database
|
|
rdb.FlushDB(ctx)
|
|
rdb.Del(ctx, "racer_ages")
|
|
// REMOVE_END
|
|
_, err := rdb.TDigestCreate(ctx, "racer_ages").Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
// STEP_START tdig_reset
|
|
res12, err := rdb.TDigestReset(ctx, "racer_ages").Result()
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
fmt.Println(res12) // >>> OK
|
|
// STEP_END
|
|
|
|
// Output:
|
|
// OK
|
|
}
|