On Tue, Oct 27, 2009 at 1:20 PM, Christopher McKenzie <[email protected]>wrote:
> > Hi, > > I'm kind of new to cassandra. In my application, testing for existence is > quite usual. For instance, someone gives me say, a URL, and if it doesn't > exist, I am ok with that. This will be the usual case. Existence may only > happen like 20% of the time. > > I was thinking this would be fine, until I saw that the thrift API *throws > and exception* if a key doesn't exist. > If you are talking about a key (row) and not a column, no exception will be raised. This operation will be blazingly fast in the case that it does not exist. -Brandon
