Valkey 9.1

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INFO server
# Server
redis_version:7.2.4
server_name:valkey
valkey_version:9.1.3
valkey_release_stage:ga
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:c6bf8b7f8673e9eb
server_mode:standalone
os:Linux 5.10.223 x86_64
arch_bits:64
monotonic_clock:X86 TSC @ 3200.54 ticks/us
multiplexing_api:epoll
gcc_version:14.2.0
process_id:948
process_supervised:no
run_id:8e36e80f10a2c7640f238e2eb2103be303848365
tcp_port:6379
server_time_usec:1793393050173303
uptime_in_seconds:0
uptime_in_days:0
hz:10
configured_hz:10
clients_hz:10
lru_clock:15008154
executable:/data/valkey-server
config_file:
io_threads_active:0
availability_zone:
listener0:name=tcp,bind=*,bind=-::*,port=6379

ZADD spend 648 ann 639 bob 575.5 cat
HSET revenue:2026-01 widget 30 gadget 70 gizmo 96
HSET revenue:2026-02 widget 45 gadget 56 gizmo 132
HSET revenue:2026-03 widget 40 gadget 84 gizmo 108
HSET revenue:2026-04 widget 55 gadget 63 gizmo 144
HSET revenue:2026-05 widget 35 gadget 91 gizmo 120
HSET revenue:2026-06 widget 50 gadget 77 gizmo 156
(integer) 3
(integer) 3
(integer) 3
(integer) 3
(integer) 3
(integer) 3
(integer) 3

HSET cart:ann widget 2 gizmo 1
HGETDEL cart:ann FIELDS 1 gizmo
HGETALL cart:ann
(integer) 2
1) "1"
1) "widget"
2) "2"

ZRANGE spend 0 -1 REV WITHSCORES
1) "ann"
2) "648"
3) "bob"
4) "639"
5) "cat"
6) "575.5"

# python demo
import valkey
r = valkey.Valkey(decode_responses=True)
for name, spend in r.zrange('spend', 0, -1, desc=True, withscores=True):
    print(f"{name:>4} {spend:8.2f}  {chr(9608) * int(spend // 40)}")
 ann   648.00  ████████████████
 bob   639.00  ███████████████
 cat   575.50  ██████████████

// node demo
const Valkey = require('iovalkey');
const v = new Valkey();
v.zrange('spend', 0, -1, 'REV', 'WITHSCORES').then(r => {
  for (let i = 0; i < r.length; i += 2)
    console.log(`${r[i].padStart(4)} ${Number(r[i + 1]).toFixed(2).padStart(8)}  ${'█'.repeat(Math.floor(r[i + 1] / 40))}`);
  v.quit();
});
 ann   648.00  ████████████████
 bob   639.00  ███████████████
 cat   575.50  ██████████████

<?php
// php demo
$r = new Redis();
$r->connect('localhost');
foreach ($r->zRange('spend', 0, -1, ['rev', 'withscores']) as $name => $spend)
    printf("%4s %8.2f  %s\n", $name, $spend, str_repeat('█', intdiv((int)$spend, 40)));
 ann   648.00  ████████████████
 bob   639.00  ███████████████
 cat   575.50  ██████████████

# echarts demo
import json, valkey
r = valkey.Valkey(decode_responses=True)
months = sorted(r.scan_iter('revenue:*'))
rev = [r.hgetall(m) for m in months]
print(json.dumps({
  'tooltip': {'trigger': 'axis'},
  'legend': {'show': True},
  'xAxis': {'type': 'category', 'data': [m.split(':')[1] for m in months]},
  'yAxis': {'type': 'value'},
  'series': [{'name': p, 'type': 'bar', 'stack': 'revenue', 'data': [int(x[p]) for x in rev]} for p in sorted(rev[0])],
}))
{"tooltip": {"trigger": "axis"}, "legend": {"show": true}, "xAxis": {"type": "category", "data": ["2026-01", "2026-02", "2026-03", "2026-04", "2026-05", "2026-06"]}, "yAxis": {"type": "value"}, "series": [{"name": "gadget", "type": "bar", "stack": "revenue", "data": [70, 56, 84, 63, 91, 77]}, {"name": "gizmo", "type": "bar", "stack": "revenue", "data": [96, 132, 108, 144, 120, 156]}, {"name": "widget", "type": "bar", "stack": "revenue", "data": [30, 45, 40, 55, 35, 50]}]}

# mermaid demo
import valkey
r = valkey.Valkey(decode_responses=True)
total = {}
for m in r.scan_iter('revenue:*'):
    for p, v in r.hgetall(m).items():
        total[p] = total.get(p, 0) + int(v)
print('pie title revenue by product')
for p in sorted(total):
    print(f'  "{p}" : {total[p]}')
pie title revenue by product
  "gadget" : 441
  "gizmo" : 756
  "widget" : 255