Re: [HACKERS] UNION JOIN vs UNION SELECT

2000-10-15 Thread 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 perfor

Re: [HACKERS] UNION JOIN vs UNION SELECT

2000-10-15 Thread Bruce Momjian
> You'll probably recall that the ambiguity between NOT NULL and NOT > DEFERRABLE gave us similar problems. We were able to get around that > by pretending NOT DEFERRABLE is an independent clause and leaving some > of the parsing work to be done by analyze.c, but I don't think that > trick will w