EMC's acquisition of Greenplum, announced today as a cash transaction, reaffirms the obvious: the Big Data tsunami upends conventional wisdom. It has already reshaped the market, spawning the most ferment in the RDBMS (and non-R DBMS via the noSQL players) space in years. When I first posted on Greenplum over a year ago, I said that

"Open source + capital has created an intriguing new model of rapid innovation in "mature" markets, and the database space - like BI - is not a done deal. It is indeed possible to escape the gravity well, if you execute. Greenplum is getting it done, and is among the new stars to watch."

Why the open source reference? Greenplum uses a parallelization layer atop PostgreSQL (like Aster, another of the new breed of ADBMS.)

Now EMC has written the next chapter in that story. In the process, it adds a new piece (after literally dozens of others in the past few years) to its own portfolio, which already includes unstructured data (via Documentum) and virtualization (via VMWare), layered in among the industry-leading storage and information management pieces. Disruptive? You bet. Is EMC finished? I doubt it. Candidates? BI tools, ETL, MDM, data integration come to mind. Losers? At least one big one. Read on.

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