Mmh, looking at it again it looks like I might have missed things. There's a try/finally right below this with the "delete from cell_backfill".

But what I meant is: Why do we store the backfill data in mysql at all? Why no just run the select part of the "insert into cell_backfill" table and iterate over those rows? Currently the code in `spinup_backfill_workers` first creates and fills the cell_backfill table and then immediately afterwards just does a "select * from cell_backfill". Just doing the select part of the insert without an intermediate table should give us the exact same result.