You can achieve what you want using versions and some hackery with timestamps
Sent from my T-Mobile 4G LTE Device -------- Original message -------- From: Jean-Marc Spaggiari <jean-m...@spaggiari.org> Date:10/21/2014 9:02 AM (GMT-05:00) To: user <user@hbase.apache.org> Cc: Subject: Re: Duplicate Value Inserts in HBase You can do check and puts to validate if value is already there, but it's slower... 2014-10-21 8:50 GMT-04:00 Krishna Kalyan <krishnakaly...@gmail.com>: > Thanks Jean, > If i put the same value in my table for a particular column for a rowkey i > want HBase reject this value and retain old value with old time stamp. > In other words update only when value changes. > > Regards, > Krishna > > On Tue, Oct 21, 2014 at 6:02 PM, Jean-Marc Spaggiari < > jean-m...@spaggiari.org> wrote: > > > Hi Krishna, > > > > HBase will store them in the same row, same cell but you will have 2 > > versions. If you want to keep just one, setup the version=1 on the table > > side and only one will be stored. Is that what yo mean? > > > > JM > > > > 2014-10-21 8:29 GMT-04:00 Krishna Kalyan <krishnakaly...@gmail.com>: > > > > > Hi, > > > I have a HBase table which is populated from pig using PigStorage. > > > While inserting, suppose for rowkey i have a duplicate value. > > > Is there a way to prevent an update?. > > > I want to maintain the version history for my values which are unique. > > > > > > Regards, > > > Krishna > > > > > >
