..@gmail.com]
> *发送时间:* 2018年5月30日 2:52
> *收件人:* Irving Duran
> *抄送:* Georg Heiler ; user <
> user@spark.apache.org>
> *主题:* Re: GroupBy in Spark / Scala without Agg functions
>
>
>
> Georg, Sorry for dumb question. Help me to understand - if i do
> DF.select(A,B,C,D)*
)
}
发件人: Chetan Khatri [mailto:chetan.opensou...@gmail.com]
发送时间: 2018年5月30日 2:52
收件人: Irving Duran
抄送: Georg Heiler ; user
主题: Re: GroupBy in Spark / Scala without Agg functions
Georg, Sorry for dumb question. Help me to understand - if i do
DF.select(A,B,C,D).distinct() that would be same as
Georg, Sorry for dumb question. Help me to understand - if i do
DF.select(A,B,C,D)*.distinct() *that would be same as above groupBy without
agg in sql right ?
On Wed, May 30, 2018 at 12:17 AM, Chetan Khatri wrote:
> I don't want to get any aggregation, just want to know rather saying
> distinct
I don't want to get any aggregation, just want to know rather saying
distinct to all columns any other better approach ?
On Wed, May 30, 2018 at 12:16 AM, Irving Duran
wrote:
> Unless you want to get a count, yes.
>
> Thank You,
>
> Irving Duran
>
>
> On Tue, May 29, 2018 at 1:44 PM Chetan Khatr
Unless you want to get a count, yes.
Thank You,
Irving Duran
On Tue, May 29, 2018 at 1:44 PM Chetan Khatri
wrote:
> Georg, I just want to double check that someone wrote MSSQL Server script
> where it's groupby all columns. What is alternate best way to do distinct
> all columns ?
>
>
>
> On
Georg, I just want to double check that someone wrote MSSQL Server script
where it's groupby all columns. What is alternate best way to do distinct
all columns ?
On Wed, May 30, 2018 at 12:08 AM, Georg Heiler
wrote:
> Why do you group if you do not want to aggregate?
> Isn't this the same as s
Why do you group if you do not want to aggregate?
Isn't this the same as select distinct?
Chetan Khatri schrieb am Di., 29. Mai 2018 um
20:21 Uhr:
> All,
>
> I have scenario like this in MSSQL Server SQL where i need to do groupBy
> without Agg function:
>
> Pseudocode:
>
>
> select m.student_id
All,
I have scenario like this in MSSQL Server SQL where i need to do groupBy
without Agg function:
Pseudocode:
select m.student_id, m.student_name, m.student_std, m.student_group,
m.student_d
ob from student as m inner join general_register g on m.student_id =
g.student_i
d group by m.student_
