Re: [HACKERS] UNION JOIN vs UNION SELECT

[Tom Lane]

Bruce Momjian <[EMAIL PROTECTED]> writes:
>> I think it's time to bite the bullet and put in a lookahead filter.
>> What say you?

> Hmmm.  Not real excited about that for performance reasons.  Other options?

It's been in there for a month.  I'll bet lunch you will be unable to
measure any performance cost --- one extra function call and if-test
per token lexed is just not going to show on the radar screen.

                        regards, tom lane