Yeah, and it doesn't even have to be a query, it could be an idempotent effect. I think they'd be better off calling it IPOST (for idempotent post). Edit: ah,

Yeah, and it doesn't even have to be a query, it could be an idempotent effect. I think they'd be better off calling it IPOST (for idempotent post). Edit: ah, they declare QUERY as "safe" meaning no side effects, for cacheability. My mistake.