Thanks Jaydeep. On first insertion, I inserted data using Thrift API programmatically. So, I could specify the timestamp which is the current system time. However, for deleting the columns I used command line client that comes with Cassandra. I have no way to specify delete timestamp in command line client. so I dont know whats exactly delete timestamp.
Unless, I know whats delete stimestamp, I have no way to compare timestamps? Thanks, Anuya On Mon, May 2, 2011 at 11:54 PM, chovatia jaydeep < chovatia_jayd...@yahoo.co.in> wrote: > One small correction in my mail below. > Second insertion time-stamp has to be greater than delete time-stamp > in-order to retrieve the data. > > Thank you, > Jaydeep > ------------------------------ > *From:* chovatia jaydeep <chovatia_jayd...@yahoo.co.in> > *To:* "user@cassandra.apache.org" <user@cassandra.apache.org> > *Sent:* Monday, 2 May 2011 11:52 PM > > *Subject:* Re: Unable to add columns to empty row in Column family: > Cassandra > > Hi Anuya, > > > However, columns are not being inserted. > > Do you mean to say that after insert operation you couldn't retrieve the > same data? If so, then please check the time-stamp when you reinserted > after delete operation. Your second insertion time-stamp has to be greater > than the previous insertion. > > Thank you, > Jaydeep > ------------------------------ > *From:* anuya joshi <anu...@gmail.com> > *To:* user@cassandra.apache.org > *Sent:* Monday, 2 May 2011 11:34 PM > *Subject:* Re: Unable to add columns to empty row in Column family: > Cassandra > > Hello, > > I am using Cassandra for my application.My Cassandra client uses Thrift > APIs directly. The problem I am facing currently is as follows: > > 1) I added a row and columns in it dynamically via Thrift API Client > 2) Next, I used command line client to delete row which actually deleted > all the columns in it, leaving empty row with original row id. > 3) Now, I am trying to add columns dynamically using client program into > this empty row with same row key > However, columns are not being inserted. > But, when tried from command line client, it worked correctly. > > Any pointer on this would be of great use > > Thanks in advance, > > Regards, > Anuya > > > > >
