Using vim for developing porstres wiki article

I've been trying to use vim for postgres development some yeas ago, but I did
not manage to do it for log time, as I quit the job etc.

Now I am trying again, but I've lost my .vimrc and notes and had to start from
the very beginning. I vaguely remember what tools I've been using, but I have
to google for them as they are not listed anywhere, and I have to meet all the
problems I've met before, again.

So I decided to write it down to a wiki article, while I am restoring the
configuration so I do not have to remember them for the third time, if I loose
.vimrc again. :-)

The article is here:

https://wiki.postgresql.org/wiki/Configuring_vim_for_postgres_development

If you are using vim, and use some tools that is not listed there, but find
them very useful, please add them... Or tell me about them, I will hopefully
add them there myself

The main purpose of article is to allow a user new to vim, start using vim for
postgres development with maximum efficiency. It should not be a vim tutorial,
but cover all postgres specific things that can be useful.