> There's only one mode you should actually use, which is the random bits. Although if you were using GUIDs in indexes in SQL Server, it made sense for them to

> There's only one mode you should actually use, which is the random bits. Although if you were using GUIDs in indexes in SQL Server, it made sense for them to have some similarity and allow ordering [1] Last time I benchmarked this, however, I couldn't detect any difference. [1] http://blogs.msdn.com/b/sqlserverfaq/archive/2010/05/27/guid-vs-int-debate.aspx http://blogs.msdn.com/b/sqlserverfaq/archive/2010/05/27/guid...