Andres Freund <andres(at)anarazel(dot)de> writes:
> My bet is, and has been for quite a while, that we'll have to go for a
> hand-written recursive descent type parser.
I will state right up front that that will happen over my dead body.
It's impossible to write correct RD parsers by hand for any but the most
trivial, conflict-free languages, and what we have got to deal with
is certainly neither of those; moreover, it's a constantly moving target.
We'd be buying into an endless landscape of parser bugs if we go that way.
It's *not* worth it.
regards, tom lane