I was not able to understand, This is my below qiuery that I am using
currently-
SELECT buyer_id, item_id, created_time
FROM (
SELECT buyer_id, item_id, rank(buyer_id) as rank, created_time
FROM testingtable1
DISTRIBUTE BY buyer_id, item_id
SORT BY buyer_id, item_id, created_time desc
) a
WHERE rank < 10
ORDER BY buyer_id, created_time, rank;
What changes I need to make?
*Raihan Jamal*
On Mon, Jul 9, 2012 at 11:52 PM, Nitin Pawar <nitinpawar...@gmail.com>wrote:
> try rk in upper select statement as well
>
>
> On Tue, Jul 10, 2012 at 12:12 PM, Raihan Jamal <jamalrai...@gmail.com>wrote:
>
>> Thanks for commenting out. Yes I figured that out, its a UDF. So now I
>> have created a new UDF Rank and added to classpath also. But when I am
>> again running the below query-
>>
>> SELECT buyer_id, item_id, created_time
>> FROM (
>> SELECT buyer_id, item_id, Rank(buyer_id) as rk, created_time
>> FROM testingtable1
>> DISTRIBUTE BY buyer_id, item_id
>> SORT BY buyer_id, item_id, created_time desc
>> ) a
>> WHERE rk < 10
>> ORDER BY buyer_id, rk;
>>
>> I am getting this below error-
>>
>> *FAILED: Error in semantic analysis: line 9:19 Invalid Table Alias or
>> Column Reference rk*
>>
>>
>> Why is it so? Any suggestions?
>>
>>
>> *Raihan Jamal*
>>
>>
>>
>> On Mon, Jul 9, 2012 at 10:51 PM, Vijay <tec...@gmail.com> wrote:
>>
>>> hive has no built-in rank function. you'd need to use a user-defined
>>> function (UDF) to simulate it. there are a few custom implementations
>>> on the net that you can leverage.
>>>
>>> On Mon, Jul 9, 2012 at 10:40 PM, Raihan Jamal <jamalrai...@gmail.com>
>>> wrote:
>>> > What's wrong with the below query.
>>> >
>>> >
>>> > SELECT buyer_id, item_id, created_time
>>> > FROM (
>>> > SELECT buyer_id, item_id, rank(buyer_id) as rank, created_time
>>> > FROM testingtable1
>>> > DISTRIBUTE BY buyer_id, item_id
>>> > SORT BY buyer_id, item_id, created_time desc
>>> > ) a
>>> > WHERE rank < 10
>>> > ORDER BY buyer_id, rank
>>> >
>>> >
>>> > I am always getting as -
>>> >
>>> > FAILED: Error in semantic analysis: line 3:30 Invalid Function rank
>>> >
>>> >
>>> > I am using Hive 0.6 I guess.
>>> >
>>> >
>>> >
>>> > Raihan Jamal
>>> >
>>>
>>
>>
>
>
> --
> Nitin Pawar
>
>
