The above comments are fixed in the attached, as well as a pass over the docs and extended tests to actually test matching a foreign server. What do think about this version? I'm still not convinced that there aren't more quoting bugs in the parser, but I've left that intact for now.
This patch is based on the version that you sent 21.9. Just I modified string comparison in keyword detection. If we don't allow support abbreviations of keywords (and I dislike it), then the check of size is necessary. Any other is without change.
