It is likely that there are many other fields that should be indexed but are not. This is likely a fairly easy way to boost Bodhi's performance, essentially for free. We should analyze some of the common queries that Bodhi performs and look for opportunities to speed them up with indices.
I recently discovered that Bodhi wasn't indexing a field that seemed like an obvious one to index, so I wrote https://github.com/fedora-infra/bodhi/commit/285c66a00a3391f712f6ef9e55613f497575b7a9
It is likely that there are many other fields that should be indexed but are not. This is likely a fairly easy way to boost Bodhi's performance, essentially for free. We should analyze some of the common queries that Bodhi performs and look for opportunities to speed them up with indices.