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zong400
V2EX  ›  Go 编程语言

有大佬用 go 操作 doris 吗?问个入门问题

  •  
  •   zong400 · 6 天前 · 920 次点击

    使用 xorm 和 gorm 操作 doris2.0 都不成功,看文档没有说支持 doris ,但是 doris 本身应该高度兼容 mysql 的吧,这些 orm 框架这么严格?还是代码上有问题?

    xorm code:

    func SelectAd() {
    	engine := _init_db("10.22.xx", "9030", "abc")
    
    	ad := new(FlowAdUrlStat)
    	if _, err := engine.Where("opt_YYYYMMDD=?", 20240626).Get(ad); err != nil {
    		log.Fatal(err)
    	}
    
    	fmt.Println(ad)
    }
    

    报错: 2024/06/27 10:55:37 Error 1105 (HY000): errCode = 2, detailMessage = Only support prepare SelectStmt point query now

    gorm code:

    	var ad FlowAdUrlStat
    
    	stmt := db.Session(&gorm.Session{DryRun: true}).Where("opt_YYYYMMDD = ?", 20240626).Take(&ad).Statement
    	fmt.Println(stmt.SQL.String()) 
    	fmt.Println(stmt.Vars)         
    
    	if err := db.Where("opt_YYYYMMDD = ?", 20240626).Take(&ad).Error; err != nil {
    		log.Fatal(err)
    	}
    
    	fmt.Println(ad)
    

    报错:

    output:
    
    Type 'dlv help' for list of commands.
    SELECT * FROM flow_ad_url_stat WHERE opt_YYYYMMDD = ? LIMIT ?
    [20240626 1]
    2024/06/26 18:07:03 Error 1105 (HY000): errCode = 2, detailMessage = Syntax error in line 1:
    ...RE opt_YYYYMMDD = ? LIMIT ?
    ^
    Encountered: ?
    Expected
    
    2024/06/26 18:07:03 D:/goproject/cloudsvc/dbutils/mysqlutil.go:63 Error 1105 (HY000): errCode = 2, detailMessage = Syntax error in line 1:
    ...RE opt_YYYYMMDD = ? LIMIT ?
    ^
    Encountered: ?
    Expected
    
    [58.356ms] [rows:0] SELECT * FROM flow_ad_url_stat WHERE opt_YYYYMMDD = 20240626 LIMIT 1
    Process 48512 has exited with status 1
    Detaching
    
    3 条回复
    Jim2Chen
        1
    Jim2Chen  
       6 天前
    蹲一个,我也很想知道
    MoYi123
        2
    MoYi123  
       6 天前
    报错原因不是都写了吗?
    OLAP 数据库不用 prepare 模式也能理解吧.
    zong400
        3
    zong400  
    OP
       6 天前
    @MoYi123 试了 gorm 的 db.Raw 也是报错
    ```
    if err := db.Raw("select * from flow_ad_url_stat limit 1").Scan(&ad).Error; err != nil {
    log.Fatal(err)
    }


    2024/06/27 15:29:37 Error 1105 (HY000): errCode = 2, detailMessage = Only support prepare SelectStmt point query now

    2024/06/27 15:29:37 D:/goproject/cloudsvc/dbutils/mysqlutil.go:59 Error 1105 (HY000): errCode = 2, detailMessage = Only support prepare SelectStmt point query now
    [63.082ms] [rows:-] select * from flow_ad_url_stat limit 1
    ```

    倒是 xorm 的可用,但是不能装进 struct ,感觉有些别扭。

    result, err := engine.QueryString("select * from flow_ad_url_stat limit 1")
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