It says MongoDB is the preferred way to store output. Are there any drawbacks to using Postgres as a backend?

[mattdornfeld]

[Qwlouse]

Drawbacks that I can think of:

• SQLObserver is less tested, so there are likely more undiscovered issues with it.
• ATM you can only store a single number as the result of an experiment (see #154)
• The config and info is currently stored as text (serialized json), so querying your DB based on config entries will be more difficult.
• Some helpers and tools (e.g. topsacred and sacredboard) rely on MongoDB

Other than that, a Postgres backend should work fine.