I have read the following topic about hpertable http://hypertable.com/documentation/. Why Hypertable is not supporting joins and Transaction?
closed as not a real question by Mark Storey-Smith, dezso, ypercube, Paul White, StanleyJohns May 30 '13 at 12:41
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Because i is not a relational database?
Because it is done for a very specific task in mind and that is not to be used as a transactional database. It is done for data warehousing.