>" I found it to be awful, because the task was very much a join-heavy operation. Something that would have been a breeze with Postgres, or even Mysql got turne

>" I found it to be awful, because the task was very much a join-heavy operation. Something that would have been a breeze with Postgres, or even Mysql got turned into this big, ugly, heavy, slow process. " If you can't be assured of structure of data input, you can't reliably and gracefully transform that data on output. That's a pretty fundamental tradeoff between SQL and NoSQL (and historically between PostgreSQL and MySQL too).