Hi Xiao,
Are you referring to this JIRA (
https://issues.apache.org/jira/browse/SPARK-24865)?
Xiao Li <gatorsm...@gmail.com> 于2018年7月20日周五 上午2:41写道：
> dfWithUDF.cache()
> dfWithUDF.write.saveAsTable("t")
> dfWithUDF.write.saveAsTable("t1")
>
>
> Cached data is not being used. It causes a big performance regression.
>
>
>
>
> 2018-07-19 11:32 GMT-07:00 Sean Owen <sro...@gmail.com>:
>
>> What regression are you referring to here? A -1 vote really needs a
>> rationale.
>>
>> On Thu, Jul 19, 2018 at 1:27 PM Xiao Li <gatorsm...@gmail.com> wrote:
>>
>>> I would first vote -1.
>>>
>>> I might find another regression caused by the analysis barrier. Will
>>> keep you posted.
>>>
>>>
>
