On Wed, Dec 19, 2012 at 2:46 PM, Jack Krupansky <j...@basetechnology.com> wrote: > Although your comment seemed to imply that the new 4.1 postings format would > store day-style dates more efficiently - could you summarize what effects we > could see?
My point was that the 4.1 format compresses dense postings lists much more efficiently. If you set all your hours, minutes, seconds and milliseconds to 0, there will be fewer distinct terms (assuming your precisionStep is < 64), so the terms dictionary will be smaller, and postings lists will be denser, so more space-efficient. And if you later decide that you need second-granularity, you'll just need to stop setting seconds to 0 without having to reindex. However, writing a new 32-bits field type with day granularity as Uwe suggests is the way to go to index day-only dates efficiently. -- Adrien --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
