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From "Darapaneni, Hazarath" <hdarapan...@ea.com>
Subject RE: hive partition questions
Date Tue, 25 Mar 2014 00:41:02 GMT
I have tried Join but it's taking too much time. Thanks Zhang for your inputs.

Thanks,
Hazarath.

-----Original Message-----
From: Xuefu Zhang [mailto:xzhang@cloudera.com] 
Sent: Monday, March 24, 2014 7:36 PM
To: dev@hive.apache.org
Subject: Re: hive partition questions

I'm on latest trunk, as named above. 0.9 might not have IN support.
However, you might be able to work around using join instead.


On Mon, Mar 24, 2014 at 4:26 PM, Darapaneni, Hazarath <hdarapaneni@ea.com>wrote:

> Which trunk are you in, am in 0.9.
>
> Thanks,
> Hazarath.
>
> -----Original Message-----
> From: Xuefu Zhang [mailto:xzhang@cloudera.com]
> Sent: Monday, March 24, 2014 6:07 PM
> To: dev@hive.apache.org
> Subject: Re: hive partition questions
>
> I'm on latest trunk, and the following similar query worked for me:
>
> select * from test as X where X.d in (select max(T.d) from test as T);
>
>
> On Mon, Mar 24, 2014 at 4:04 PM, Darapaneni, Hazarath 
> <hdarapaneni@ea.com
> >wrote:
>
> > I have tried but no luck..
> >
> > FAILED: Parse Error: line 1:27 mismatched input 'as' expecting EOF near '
> > page_view'  and took out as and tried and it gave me  same syntax 
> > error as earlier one.
> >
> > FAILED: Parse Error: line 1:48 cannot recognize input near 'select' 'max'
> > '(' in expression specification
> >
> > Thanks,
> > Hazarath.
> >
> > -----Original Message-----
> > From: Xuefu Zhang [mailto:xzhang@cloudera.com]
> > Sent: Monday, March 24, 2014 5:53 PM
> > To: dev@hive.apache.org
> > Subject: Re: hive partition questions
> >
> > You may try:
> >
> > select * from page_view as PV1 where PV1.dt IN (select max(dt) from 
> > page_view);
> >
> >
> > --Xuefu
> >
> >
> > On Mon, Mar 24, 2014 at 3:47 PM, Darapaneni, Hazarath 
> > <hdarapaneni@ea.com
> > >wrote:
> >
> > > Thanks Zhang,
> > >
> > > Is there a way to access ma partition in hive without specifying 
> > > as
> > value.
> > > Like as sub query .. select * from page_view where dt=(select
> > > max(dt) from page_view)..i tried this but its failing with syntax.
> > >
> > > Thanks,
> > > Hazarath.
> > >
> > > -----Original Message-----
> > > From: Xuefu Zhang [mailto:xzhang@cloudera.com]
> > > Sent: Monday, March 24, 2014 3:21 PM
> > > To: dev@hive.apache.org
> > > Subject: Re: hive partition questions
> > >
> > > As far as I know, select * from table gives you all data across 
> > > all partitions, and I don't think there is a config option to ask 
> > > Hive to read "latest" partition.
> > >
> > > --Xuefu
> > >
> > >
> > > On Mon, Mar 24, 2014 at 12:34 PM, Darapaneni, Hazarath
> > > <hdarapaneni@ea.com>wrote:
> > >
> > > > Hi Team,
> > > >
> > > >
> > > > I have a scenario that I need help from you guys, please check 
> > > > and let me know, if it's feasible or not.
> > > >
> > > > Scenario:
> > > >
> > > > I have a table called page_view and it has 10 partitions with 
> > > > date
> > > > (2013-12-20 to 2013-12-30) and I need to select latest partition 
> > > > without giving date as where condition.
> > > >
> > > > If I do  select * from page_view then it should got to latest 
> > > > partition as default (in this case its 2013-12-30) , is there a 
> > > > way to do this in hive configuration.
> > > >
> > > > Thanks,
> > > > Hazarath.
> > > >
> > >
> >
>

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