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From ComputerWeekly]
The deal, approved by US competition authorities, is being delayed because of concerns by their European counterparts that customers could face reduced choice or higher prices as a result of the merger.
They contend that Sun's MySQL open-source database software is a potential long-term competitor to Oracle's core database business.
The article continues at
http://www.computerweekly.com/Articles/2009/10/23/238274/open-source-developers-oppose-oracles-mysql-acquisition.htm