It specifically mentions "taskmasters" who manage/create work for others, and project managers might be put into that category by some (but again, not by me as a general rule).
The great thing about AWS and other cloud platforms is that you can put the data in e.g. S3, then use the tool of choice for your workloads.
I'm assuming that MemSQL works fine with that sort of configuration, rather than requiring you to lock your data up in some proprietary format.
Also, unlike the bad old days of on-premise platforms, you can try things out to see how they work. You could even do that with a public dataset first, to see how it works (see https://registry.opendata.aws/ for a list of these).
For example, there is an Amazon Customer Review dataset of over 160 million customer reviews - you could use that and try MemSQL for various use cases, then look at alternatives.