Also it's worth noting that there are no reporting / licensing
requirements for postgresql. It's all over the place, and you just
don't see it. My last company we had a 400G user database serving some
2million students daily, and were seriously pounding a pair of $25k db
servers to handle the load. And that was with memcache to remove a lot
of the read only load as well. We're talking 500 to 700Mb/s outbound
traffic, sustained, for about 9 months out of the year. For every
story you see of someone using pgsql, there are literally thousands of
users you never hear of.
