thank you aman.May i know the release date of apache drill 1.0. On Thu, Apr 2, 2015 at 11:40 AM, Aman Sinha <[email protected]> wrote:
> Hi Mahesh, > Please see https://issues.apache.org/jira/browse/DRILL-951 for the issue > of CSV headers. It is a feature that will be addressed in an upcoming > release (currently tagged for 1.0). > > Aman > > On Wed, Apr 1, 2015 at 10:52 PM, Mahesh Sankaran <[email protected] > > > wrote: > > > Hi , > > I am currently working in Apache Drill to analyse CSV files.My > > problem is, If the CSV file has headers means we cant do any sum query.It > > shows the following errors. > > > > 0: jdbc:drill:zk=nn01:2181,dn02:2181,dn03:218> select sum(cast(columns[6] > > as int)) from HDFS.`/test.csv` limit 10; > > Query failed: RemoteRpcException: Failure while running fragment., > rcvdbyte > > [ 584925d6-dab6-42ce-8eb3-fa7abfb0e0f2 on nn01:31010 ] > > [ 584925d6-dab6-42ce-8eb3-fa7abfb0e0f2 on nn01:31010 ] > > > > > > Error: exception while executing query: Failure while executing query. > > (state=,code=0) > > > > *But the above query is working well without headers.There is any way to > > sum the columns in CSV files with headers in Apache Drill.* > > > > *This is our example file:* > > 0: jdbc:drill:zk=nn01:2181,dn02:2181,dn03:218> select * from > > HDFS.`/test.csv` limit 10; > > +------------+------------+ > > | columns | dir0 | > > +------------+------------+ > > | ["date1","time1","srcip","dstip","service","sentbyte","rcvdbyte"] | > > nn01:9000 | > > | > ["2015-01-01","00:00:00","10.10.100.74","192.168.0.12","DNS","0","193"] | > > nn01:9000 | > > | > ["2015-01-01","00:00:00","10.10.100.74","192.168.0.12","DNS","0","166"] | > > nn01:9000 | > > | > ["2015-01-01","00:00:00","10.10.100.74","192.168.0.12","DNS","60","359"] > > | nn01:9000 | > > | > > > > > ["2015-01-01","00:00:00","10.10.50.195","106.10.193.45","php","717","359","0","0"] > > | nn01:9000 | > > | > ["2015-01-01","00:00:00","111.123.180.44","117.239.67.36","9064","0","0"] > > | nn01:9000 | > > | > ["2015-01-01","00:00:00","111.123.180.44","117.239.67.37","9064","0","0"] > > | nn01:9000 | > > | > ["2015-01-01","00:00:00","111.123.180.44","117.239.67.38","9064","0","0"] > > | nn01:9000 | > > | > ["2015-01-01","00:00:00","111.123.180.44","117.239.67.34","9064","0","0"] > > | nn01:9000 | > > | > ["2015-01-01","00:00:00","111.123.180.44","117.239.67.44","9064","0","0"] > > | nn01:9000 | > > > > > > Thanks and Regards, > > > > Mahesh Sankaran > > >
