If i have the value of a row in JSON format, would pig we able to parse it and join the fields as per my needs?
On Fri, Jul 19, 2013 at 10:00 PM, Shahab Yunus <shahab.yu...@gmail.com> wrote: > You can also look into Pig, if you already haven't. It supports various > kinds of joins and is simpler than writing your own M/R job (assuming that > you don't have complex or custom requirements.) > > Regards, > Shahab > > > On Fri, Jul 19, 2013 at 12:24 AM, Pavan Sudheendra <pavan0...@gmail.com>wrote: > >> Hi, >> >> I know that HBase by default doesn't support table joins like RDBMS.. >> But anyway, I have a table who value contains a json with a particular >> ID in it.. >> This id references another table where it is a key.. >> >> I want to fetch the id first from table A , query table 2 and get its >> corresponding value.. >> >> What is the best way of achieving this using the MR framework? >> Apologizes, i'm still new to Hadoop and HBase so please go easy on me. >> >> Thanks for any help >> >> -- >> Regards- >> Pavan >> -- Regards- Pavan
