A side note I think Postgres had a DARPA grant.
And the US Government have approved the sale so MySQL users mostly ISP that charges a few dollars a month for unlimited use may have to pay more because Oracle is not known for nickle and dime business model.
http://tech.yahoo.com/news/ap/20090821/ap_on_hi_te/us_oracle_sun
The DARPA $$ were for Stonebraker at Berkley in 1986. That relationship is long gone.
Not sure of the timing any more (it was just before or just after the announcement of the buyout by Sun), but there are, at least, two forks of MySql; allegedly to return it to its roots, which is to say, a mere SQL parser in front of a file system. Those folks will not be Oracle customers, those folks don't do relational data. I'd wager that most moved out since Sun bought MySql. The first release under Sun is widely reported to have been less than useful.
In any case, MySql is GPL, so for those who don't want to deal with Larry, alternatives already exist.