Re: Best way to store millisecond-accurate data

2010-05-05 Thread Даниел Симеонов
Hi In practice, one would want to model their data such that the 'row has too much columns' scenario is prevented. I am curious how really to prevent this, if the data is sharded with one day granularity, nothing stops the client to insert enormous amount of new columns (very often it is

Re: Best way to store millisecond-accurate data

2010-04-23 Thread Miguel Verde
TimeUUID's time component is measured in 100-nanosecond intervals. The library you use might calculate it with poorer accuracy or precision, but from a storage/comparison standpoint in Cassandra millisecond data is easily captured by it. One typical way of dealing with the data explosion

Re: Best way to store millisecond-accurate data

2010-04-23 Thread Erik Holstad
On Fri, Apr 23, 2010 at 5:54 PM, Miguel Verde miguelitov...@gmail.comwrote: TimeUUID's time component is measured in 100-nanosecond intervals. The library you use might calculate it with poorer accuracy or precision, but from a storage/comparison standpoint in Cassandra millisecond data is