See "If you attempt to retrieve an entire row and it returns a result with no columns, it effectively means that row does not exist." Essentially a row without columns doesn't exist.. (except those with tombstones) from here http://stackoverflow.com/questions/8072253/is-there-a-difference-between-an-empty-key-and-a-key-that-doesnt-exist
On Wed, Oct 17, 2012 at 2:17 PM, Xu Renjie <xrjxrjxrj...@gmail.com> wrote: > Sorry for the version, I am using 1.0.1 Astyanax. > > > On Wed, Oct 17, 2012 at 4:44 PM, Xu Renjie <xrjxrjxrj...@gmail.com> wrote: >> >> hello guys, >> I am currently using Astyanax as a client(new to Astyanax). But I am >> not clear how to differentiate the following 2 situations: >> a. A row which has only key without columns >> b. No this row in database. >> >> Since when I use RowQuery to query Cassandra with given key, both the >> above two situations will return a ColumnList >> with size 0. And also I didn't find other api can handle this. >> Do you have any better way for this? Thanks in advance. >> Cheers, >> Xu > >
