Hello,


  "PostgreSQL creates a new version of the row and also retains the
   old or expired version. Database systems that use row-level
   locking do not retain old versions of the data, hence the need
   for locks to maintain data consistency."

this sounds very functional to me,
like non-destructive updates/functional datastructures...

... does FP ideas become more and more popular?

The quote is from:

  http://www.onlamp.com/pub/a/onlamp/2001/05/25/postgresql_mvcc.html

OK, it's not absolutely new, but it's > y2k. ;-)

I also heard of gcc that newer versions use FP-like ideas....


Ciao,
   Oliver