(How) Has Open Source Data Warehousing Developed?

“Given the strengths of open source database management systems
(DBMSes), open source seems like a natural platform for data
warehousing. We’ve seen a number of success stories over the last
few years, Travelocity, O’Reilly, FTD, and Frontier Airlines among
them, but the roster of case studies is mighty thin. But I’ve only
recently (re-)started looking–in the last couple of years, on the
open-source front I’ve covered mostly BI (e.g., May, March)–and I
hope to find many more for a report I am planning on open source
(based) data warehousing (OSDW).

“Additional OSDW implementations are surely out there…”

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