This was a postponed decision, because I did not liked to listen to an experienced counselor.
Sun Microsystems is in the way of closing MySQL, which is a "feeling" years ago, but has never crossed the red line of "minor risk". Unfortunately this is a sad reality today. The good news is that FLOSS is an open space for alternatives in most of cases.
So where am I going now? I'm going back to PostgreSQL, although is rigid but that guarantees will be that way for preserving the FLOSS philosophy.