[TeMPOraL]

> I think it would be helpful if you could dive deeper why you think " Refreshing the data every five minutes in batches" is "sufficient".

Not OP, but I'm guessing because most of that data is not actionable in real-time. There's zero point to get real-time data to analysts or decision makers if they're not going to use it to make real-time decisions; arguably, it can be even counterproductive, leading to an organizational ADHD, where people fret over minute-to-minute changes, where they should be focusing on daily or monthly running averages.

[jacques_chester]

While they focus on the very-fast-updates thing, I think their technology will apply to batch cases also. In either of streaming or batching I want to do the least possible work, their claim is that they can skip a lot of unnecessary computations automatically.

That said, I find that batch systems have enormous inertia due to simple don't-touch-it syndrome. A report got developed in 1992 for a manager who retired in 1998 and died in 2009. Each night it churns through 4 billion records in a twelve-way join that costs tens of thousands of dollars of computing time per year.

Who reads this report? Nobody. In fact, the person who asked for it read it two or three times and then stopped. But it's landed reliably in an FTP folder for 28 years and by god nobody is game to find out whether the CEO reads it religiously.