The default is BytesType, which is a straightforward lexical comparison of the bytes in each column. The CompareWith attribute tells Cassandra how to sort the columns for slicing operations. This scheme has been criticized in that it is not sufficiently 'opaque' it reveals both the identity of the computer that generated the UUID and the time at which it did so. In practice, the actual algorithm is more complicated. A Version 1 UUID is defined as the following: Conceptually, the original (version 1) generation scheme for UUIDs was to concatenate the UUID version with the MAC address of the computer that is generating the UUID, and with the number of 100-nanosecond intervals since the adoption of the Gregorian calendar in the West. TimeUUIDType is a Version 1 UUID used in the CompareWith attribute of the storage config file. NET lacks a critical type to Cassandra, for column comparison and sorting, called TimeUUIDType. As I was diving in deeper to learn more about the subject, I realized that. Previously I had written about how to setup Cassandra as a database on your Windows machine. NET Home Subscribe Creating a Time UUID (GUID) in.

Convert mac address to uuid