golang db.Prepare select top ? order by ?

用的这个驱动 _ "github.com/go-sql-driver/mysql"
经过测试,貌似golang的 db.Prepare在查询字符串中 不能使用 select top ? ... order by ? 这样的两个地方不能使用通配符啊。好奇怪。比如:
下面的代码就不行。

 sqlstr := `
 select top ?
 a.[Id], a.[CreateDate],a.[PublisherId],a.[NickName],a.[FileSize],a.[Followed],
 a.[Readed],a.[FilePath], b.[STitle],a.[CreateDate],a.[Encryptioned],a.[FileName]
 from [hds12204021_db].[dbo].[Web2019_historylist] a, [hds12204021_db].[dbo].[Web2019_roomlist] b
 where a.roomid = ? and a.Deleted = 0 and a.roomid=b.id and a.[CreateDate] < ?
 order by ? desc
 `
 log.Println(sqlstr)
 stmt1, err0 := db.Prepare(sqlstr)

如下错误:

2019年05月29日 11:21:50 apis_public.go:343: 
 select top ?
 a.[Id], a.[CreateDate],a.[PublisherId],a.[NickName],a.[FileSize],a.[Followed],
 a.[Readed],a.[FilePath], b.[STitle],a.[CreateDate],a.[Encryptioned],a.[FileName]
 from [hds12204021_db].[dbo].[Web2019_historylist] a, [hds12204021_db].[dbo].[Web2019_roomlist] b
 where a.roomid = ? and a.Deleted = 0 and a.roomid=b.id and a.[CreateDate] < ?
 order by ? desc
 
2019年05月29日 11:21:51 apis_public.go:346: ServeSrs sql db.Prepare error发生意外。 (语法错误或违反访问规则)

如果改成写死的参数,如下,就OK了。备注一下:

 sqlstr := `
 select top 20
 a.[Id], a.[CreateDate],a.[PublisherId],a.[NickName],a.[FileSize],a.[Followed],
 a.[Readed],a.[FilePath], b.[STitle],a.[CreateDate],a.[Encryptioned],a.[FileName]
 from [hds12204021_db].[dbo].[Web2019_historylist] a, [hds12204021_db].[dbo].[Web2019_roomlist] b
 where a.roomid = ? and a.Deleted = 0 and a.roomid=b.id and a.[CreateDate] < ?
 order by a.CreateDate desc
 `
 log.Println(sqlstr)
 stmt1, err0 := db.Prepare(sqlstr)

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