g) part as a function. If the function meets certain criteria such
> as associative and cumulative like, say Add or multiplication, you can use
> reducebykey, else you may use groupbykey.
>
> HTH
> On 18 Nov 2016 06:45, "titli batali" <titlibat...@gmail.com> wrote:
>
>
rtitioned on the first n letters of userid
>
> On 17 November 2016 at 08:25, titli batali <titlibat...@gmail.com> wrote:
>
>> Hi,
>>
>> I have a use case, where we have 1000 csv files with a column user_Id,
>> having 8 million unique users. The data contain
Hi,
I have a use case, where we have 1000 csv files with a column user_Id,
having 8 million unique users. The data contains: userid,date,transaction,
where we run some queries.
We have a case where we need to iterate for each transaction in a
particular date for each user. There is three nesting
