Revision 1 as of 2010-02-08 22:30:53
Added basic Cassandra information for UUIDs, any base information on UUIDs can be found easily on wikipedia. Should that info be moved here as well?
|Deletions are marked like this.||Additions are marked like this.|
|Line 10:||Line 10:|
Universally Unique Identifers (UUID) are a standardized unique indentifier in the form of a 128 bit number. In it's canonical form UUIDs are represented by a 32 digit hexadecimal number in the form of xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.
UUIDs are used in column comparison in Cassandra.
The LexicalUUIDType is used for a non-time based comparison. It is compared lexically, by byte value.
The TimeUUIDType is used for a time based comparison. It uses a version 1 UUID.