forked from ClickHouse/clickhouse-go
/
multiple.go
72 lines (64 loc) · 1.45 KB
/
multiple.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
package main
import (
"database/sql"
"fmt"
"log"
"time"
"github.com/kshvakov/clickhouse"
)
func main() {
connect, err := sql.Open("clickhouse", "tcp://127.0.0.1:9000?username=&debug=true")
checkErr(err)
if err := connect.Ping(); err != nil {
if exception, ok := err.(*clickhouse.Exception); ok {
fmt.Printf("[%d] %s \n%s\n", exception.Code, exception.Message, exception.StackTrace)
} else {
fmt.Println(err)
}
return
}
for i := 0; i < 10; i++ {
connect.Exec(fmt.Sprintf("DROP TABLE IF EXISTS example_%d", i))
_, err = connect.Exec(fmt.Sprintf(`
CREATE TABLE example_%d (
country_code FixedString(2),
os_id UInt8,
browser_id UInt8,
categories Array(Int16),
action_day Date,
action_time DateTime
) engine=Memory
`, i))
checkErr(err)
}
for i := 0; i < 10; i++ {
go func(i int) {
for {
tx, err := connect.Begin()
checkErr(err)
stmt, err := tx.Prepare(fmt.Sprintf("INSERT INTO example_%d (country_code, os_id, browser_id, categories, action_day, action_time) VALUES (?, ?, ?, ?, ?, ?)", i))
checkErr(err)
for i := 0; i < 100; i++ {
if _, err := stmt.Exec(
"RU",
10+i,
100+i,
[]int16{1, 2, 3},
time.Now(),
time.Now(),
); err != nil {
log.Fatal(err)
}
}
checkErr(tx.Commit())
time.Sleep(time.Second)
}
}(i)
}
<-time.Tick(time.Minute)
}
func checkErr(err error) {
if err != nil {
log.Fatal(err)
}
}