rsqlite_send_query中的错误（conn @ptr，statement）：near＆＃34; pivot＆＃34;：语法错误

Question

我在这部分中遇到错误之前我没有使用分区功能但它现在给我错误我用它替换它 其他查询，我想将行转换为列，也请任何人给出如何创建动态项目列 this is a look of my data

v<-sqldf(
   "select id,item1,item2,item3,item4,item5,item6,item7,item8,item9,item10
    from(
           select a.*,'item' || count(*) row_no 
           from ddd a join ddd b on a.id = b.id and b.rowid <= a.rowid
           group by a.rowid
           order by a.rowid
    )Temp
    pivot
    (
        max(name)
        for row_no in (item1,item2,item3,item4,item5,item6,item7,item8,item9,item10)
    )Piv"
)