While the point in the headline is fine, the supporting reasoning is in places dubious. Don't use SQL for anything over 5 TB? Huh? You can put a lot more data

While the point in the headline is fine, the supporting reasoning is in places dubious. Don't use SQL for anything over 5 TB? Huh? You can put a lot more data than that on a node with a nice open source columnar analytic DBMS, and of course there are a lot of MPP relational analytic DBMS as well. SQL on Hadoop requiring full table scans? Well, that's what Impala is for. Hadapt is more mature than Impala. Stinger is coming on, and is open source. Nice marketing line, however.