They are two competing open source databases, knowing strength/weakness of each is always good. So unless the answer is `we rock, you suck`, it would be a useful info. for lots of people

PostgreSQL has been mentioned on EVERY database post for years now. And it always involve an endless amount of condescension in particular directed at those that god forbid choose to use a NoSQL database.

Everything seems to get turned into a competition despite the fact that the world have moved away from the centralised, vertically scaled database towards a more heterogenous landscape.

What drives me mad is when people claim they choose PostgreSQL over MySQL because data integrity concerns, yet they run PostgreSQL on Linux as opposed to FreeBSD or Illumos using ZFS.

Postgres' MVCC is almost like copy-on-write by itself, so anything more than a journal is overkill in any realistic scenarios.

Personally we tried ZFS with PostgreSQL and we managed to fill the WAL drive before the vacuum could clear it out with our update rate.

So we went back to XFS on the more commonly adopted (in our company); CentOS

BSD > Linux

Postgres > Mysql (in most cases)

But larger learning curve