For vim users: Syntax highlighting for PostgreSQL

Hi,

I just wrote a pgsql.vim file for vim users. It helps you to colorize
the file which contains PostgreSQL SQL keywords:

http://www.gunduz.org/postgresql/pgsql.vim

In order to use this file, first edit filetype.vim file and add

" PgSQL
au BufNewFile,BufRead *.pgsql setf pgsql

to the relevant part. We will need to do this until this file becomes an
official part of vim.

Then put pgsql.vim to the syntax directory of vim
(/usr/share/vim/vim64/syntax on my Fedora Core 5). After you rename your
sql file as filename.pgsql, the syntax highlighting will be enabled.

What I've added so far:

- All the functions
- All the data types
- Many of the keywords (let us see if I've missed anything)
- Comments

I've used mysql.vim as a template. Thanks to \df, \dT and psql's -E for
making this process easier. :)

If you are vim user, please test it and send the possible
errors/additions to me. I intend to send this file to vim developers,
too, after the testing.

Regards,
--
The PostgreSQL Company - Command Prompt, Inc. 1.503.667.4564
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