Hi Amit, Hive needs data to be stored in its own namespace. Can you please explain why you want to call the database through Hive ?
Thanks and Regards, Sonal www.meghsoft.com http://in.linkedin.com/in/sonalgoyal On Mon, Aug 2, 2010 at 11:56 AM, amit jaiswal <amit_...@yahoo.com> wrote: > Hi, > > I have a database and am looking for a way to 'mount' the db table in hive > in > such a way that the select query in hive gets translated to sql query for > database. I saw DBInputFormat and sqoop, but nothing that can create a > proxy > table in hive which internally makes db calls. > > I also tried to use custom variant of DBInputFormat as the input format for > the > database table. > > create table employee (id int, name string) stored as INPUTFORMAT > 'mycustominputformat' OUTPUTFORMAT > 'org.apache.hadoop.mapred.SequenceFileOutputFormat'; > > select id from employee; > This fails while running hadoop job because HiveInputFormat only supports > FileSplits. > > HiveInputFormat: > public long getStart() { > if (inputSplit instanceof FileSplit) { > return ((FileSplit)inputSplit).getStart(); > } > return 0; > } > > Any suggestions as if there are any InputFormat implementation that can be > used? > > -amit >
