Surprised to see this
On Friday, Jacobs announced his resignation from Oracle to key members of the MySQL team via e-mail. Jacobs, a 28-year Oracle veteran and one of its first 20 hires, has been Oracle's liaison with the MySQL community for the past several years, ever since Oracle acquired the popular MySQL storage engine, InnoDB.
While Jacobs doesn't give an explicit reason for his departure, he does hint at disappointment that he was not selected to run MySQL's database business post-acquisition. "I imagine you all know that I will not be leading the MySQL GBU, as I had expected," he said.