
Here Is The Version Without Legal Exposure
sudo apt-get install postgresql
Oracle has promised to continue developing the community edition of MySQL. But you'd better like the architecture and customers that Oracle is targeting. On Sunday, the database giant's chief architect, Edward Screven, committed Oracle to making not only the enterprise edition of MySQL better but also the community version …
BSD license doesn't give any patent grant. Not even implied. Someone could contribute patented feature today, only to sue tomorrow. There is a reason why nobody use PostgreSQL even though it was around forever.
MySQL is safe under GPL as well as Drizzle and MariaDB. Also, Ingres is getting VectoWise stuff opensourcred under GPL.