Comment Comment by crazygringo > I suspect it would not be used as often as the primary key indexThat doesn't matter because it's the creation of the index entry that matters, not how often it's used for lookup. The lookup cost is the same anyways. parent crazygringo 1 year ago
That doesn't matter because it's the creation of the index entry that matters, not how often it's used for lookup. The lookup cost is the same anyways.