change this " SELECT buyer_id, item_id, created_time" to " SELECT buyer_id, item_id, created_time, rk" On Tue, Jul 10, 2012 at 12:30 PM, Raihan Jamal <jamalrai...@gmail.com>wrote:
> 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 >> >> > -- Nitin Pawar
