Also, search the mail archive for the word "faceting", this topic has been discussed many times, and there's quite a bit of information about this topic.
Best Erick On 9/22/07, newbieoflucene <[EMAIL PROTECTED]> wrote: > > > 2-3G index data with 20M records, and each record has 10 or more fields, > 3-5 > fields are group fields, which I want to count them for returned results > after searching. These group fields contains about 1000 or more values. It > means that I would count 1000 categories for each search. > > Due to the searched results number will be very big, so iterator each > record > with HitCollector that is too slow to count all of records (counting will > cost about 30 seconds) > > Unfortunately, If I use QueryFilter to query each category one by one and > save it to BitSet, but the number of category is about 1000, I've to > filter > it about 1000 times to count each category. It still consumed about 20 > seconds. > > Is there any better way to count these categories faster and low memory? > > Any idea is appreciated! > -- > View this message in context: > http://www.nabble.com/How-to-count-categories--tf4500720.html#a12835751 > Sent from the Lucene - Java Users mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
