< * All backends running as threads in a single process (not want)
> * All backends running as threads in a single process (not wanted)
< * Optimizer hints (not want)
> * Optimizer hints (not wanted)
>
> * Allow AS in "SELECT col AS label" to be optional (not wanted)
>
>   Because we support postfix operators, it isn't possible to make AS
>   optional and continue to use bison.
>   http://archives.postgresql.org/pgsql-sql/2006-08/msg00164.php