search for: construcing

Hi all, I'm once again looking for search with date ranges. e.g. All entries before a certain date. I understand that Omega does this by adding keywords for each year, month and day number separately and construcing a big OR query year = 1980 or year = 1981 or year = 1982 .... or (year = 1983 and (month =1 or month = 2 ...)) I think Olly said he was considering adding something to Xapian, so the same fields used for sorting can be used for range comparison. Any progress on this? Francis (this is all for htt...