Can you tell us which release you were using ?
Thanks
> On Sep 16, 2015, at 7:11 PM, "guoqing0...@yahoo.com.hk"
> <guoqing0...@yahoo.com.hk> wrote:
>
> Hi all,
> I found the table structure was modified when use DataFrameWriter.jdbc to
> save the content of DataFrame ,
>
> sqlContext.sql("select '2015-09-17',count(1) from
> test").write.jdbc(url,test,properties)
>
> table structure before saving:
> app_key text
> t_amount bigint(20)
>
> saved:
> _c0 text
> _c1 bigint(20)
>
> Is there any way to just save the field in sequence and do not alter the
> table ?
>
> Thanks!
