feat(ScanRows): 新增 scanRows 转map数组

This commit is contained in:
2025-06-25 17:42:22 +08:00
parent 340deecefb
commit ac1054d833
2 changed files with 94 additions and 0 deletions

View File

@@ -4,6 +4,7 @@ import (
"database/sql"
"encoding/json"
"fmt"
//_ "github.com/taosdata/driver-go/v3/taosWS"
"testing"
"time"
)
@@ -195,3 +196,47 @@ func TestScanRows(t *testing.T) {
//marshal, _ := json.MarshalIndent(sdArray, "", " ")
//fmt.Println(len(sdArray), string(marshal))
}
func TestScanRowsToMap(t *testing.T) {
/*
文档参考: https://docs.taosdata.com/reference/connector/go/#websocket-%E8%BF%9E%E6%8E%A5
go get github.com/taosdata/driver-go/v3
import _ "github.com/taosdata/driver-go/v3/taosWS"
超级表创建
CREATE STABLE `super_dev` (`ts` TIMESTAMP , `app_sn` VARCHAR(500) , `ct` INT ) TAGS (`dev_id` VARCHAR(50), `dev_type` VARCHAR(50))
批量插入
INSERT INTO
`dev_SN001` USING `super_dev` (`dev_id`,`dev_type`) TAGS ('SN001','模拟设备') (`ts`,`app_sn`,`ct`)
VALUES ('2024-09-18T16:22:17+08:00','a0001',1),('2024-09-18T16:22:18+08:00','a0002',2)
`dev_SN002` USING `super_dev` (`dev_id`,`dev_type`) TAGS ('SN002','模拟设备') (`ts`,`app_sn`,`ct`)
VALUES ('2024-09-18T16:22:17+08:00','a0003',3)
*/
var taosUri = "root:taosdata@localhost:6041/test"
db, err := sql.Open("taosWS", taosUri)
if err != nil {
t.Fatal(err)
}
rows, err := db.Query("select * from super_dev order by ts desc limit 100")
if err != nil {
t.Fatal(err)
}
defer func() { _ = rows.Close() }()
tdMapper := NewMapper()
toMap, err := tdMapper.ScanRowsToMap(rows)
if err != nil {
t.Fatal(err)
}
indent, _ := json.MarshalIndent(toMap, "", " ")
fmt.Println(string(indent))
fmt.Println("len:", len(toMap))
}