On Fri, Mar 12, 2010 at 7:46 PM, Peter Chang <pete...@gmail.com> wrote:
> Yes, I can update that one entry. But what if that subcolumn key is used > across many different places? > > ['Jones-Bob']['connections'] > ['Hacker-Alyssa-1ab54760-2ca8-11df-aabd-005056c00001'] > ['Crabtree-Sam']['connections'] > ['Hacker-Alyssa-1ab54760-2ca8-11df-aabd-005056c00001'] > ['Rice-Brown']['connections'] > ['Hacker-Alyssa-1ab54760-2ca8-11df-aabd-005056c00001'] > ... > > I can update every single entry but now I need to keep track of them (which > I guess I'm doing anyway). I was wondering if there was a more elegant > solution but it seems unlikely based on the given constraints. > You have to update them all and track them, correct. What you're looking for sounds like transaction support, which Cassandra does not have. On the bright side, writes are cheap. -Brandon
