[arountheworld]

I am happy to write SQL, but you need to write it in such a way that you have tests confirming your query does what you intend to. Then run a query as a short lived application on the cluster. You don't need to SSH even for low level stuff. I am sorry if I didn't make it clear.

[notyourday]

That a rather naive position. Over time one periodically needs to poke individual instances to see what's going on in them even if just to ensure consistency of what the aggregation sees vs what the instance is doing before destroying the instance one has logged into.