- Changing the fast_id pkeys to just ids on the fast tables.
- Removing the private_message_fast, since the view contains no aggregates.
- Comment and post voting now no longer pull from the views, they update the counts directly.
- Adding a hot_rank desc, published desc index to post_aggregates_fast.
- Removed WITH CTE queries in favor of direct selects (since CTEs cant
use indexes)
