al3x/sovereign — pull request #127 by tilsammans (2014-01-05 20:59:44+00:00)
Title: add indexes on the virtual alias tables

When you're hosting a couple of hundred aliases, you will benefit.
It seems safer to create the index and deal with the slight overhead
for just a couple of records, as opposed to not having these
indexes and deal with serious performance issues if you have
lots of aliases on the machine.