Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
Hive >> mail # user >> Some Weird Behavior


Copy link to this message
-
Re: Some Weird Behavior
What is the hive version that you are using?

On Tue, Aug 7, 2012 at 12:57 PM, Techy Teck <[EMAIL PROTECTED]> wrote:

> I am not sure about the data, but when we do
>
> SELECT count(*) from data_realtime where dt='20120730' and uid is null
>
> I get the count
>
> but If I do-
>
> SELECT * from data_realtime where dt='20120730' and uid is null
>
> I get zero record back. But if all the record is NULL then I should be
> getting NULL record back right?
>
>
> But I am not getting anything back and that is the reason it is making me
> more confuse.
>
>
>
>
>
>
> On Tue, Aug 7, 2012 at 10:31 AM, Yue Guan <[EMAIL PROTECTED]> wrote:
>
> > Just in case, all Record is null when uid is null?
> >
> > On Tue, Aug 7, 2012 at 1:14 PM, Techy Teck <[EMAIL PROTECTED]>
> > wrote:
> > > SELECT count(*) from data_realtime where dt='20120730' and uid is null
> > >
> > >
> > >
> > > I get the count as 1509
> > >
> > >
> > >
> > > So that means If I will be doing
> > >
> > >
> > >
> > > SELECT * from data_realtime where dt='20120730' and uid is null
> > >
> > >
> > >
> > > I should be seeing those records in which uid is null? right?
> > >
> > > But I get zero record back with the above query. Why is it so? Its very
> > > strange and why is it happening like this. Something wrong with the
> Hive?
> > >
> > >
> > >
> > > Can anyone suggest me what is happening?
> > >
> > >
> > >
> > >
> >
>

--
Swarnim