Re: Execution of udf

2013-01-18 Thread Dean Wampler
That should be an identity pass through or NOOP that does nothing, but MapReduce requires "something". On Fri, Jan 18, 2013 at 8:57 AM, nagarjuna kanamarlapudi < nagarjuna.kanamarlap...@gmail.com> wrote: > No but the query execution shows a reducer running .. And infant I feel > that reduce phase

Re: Execution of udf

2013-01-18 Thread nagarjuna kanamarlapudi
No but the query execution shows a reducer running .. And infant I feel that reduce phase can be there On Friday, January 18, 2013, Dean Wampler wrote: > There is no reduce phase needed in this query. > > On Fri, Jan 18, 2013 at 6:59 AM, nagarjuna kanamarlapudi < > nagarjuna.kanamarlap...@gmail.c

Re: Execution of udf

2013-01-18 Thread Dean Wampler
There is no reduce phase needed in this query. On Fri, Jan 18, 2013 at 6:59 AM, nagarjuna kanamarlapudi < nagarjuna.kanamarlap...@gmail.com> wrote: > Hi, > > Select col1,myudf(col2,col3) from table1; > > > In what phase if map reduce an udf is executed. > > In the very beginning, I assumed that h