> Quite a few Lucene examples on lines shows how to insert multiple fields > into a Document and how to query the indexed file with certain fields and > queried text. I would like to know: > > 1. How to do a cross-field search?
http://wiki.apache.org/lucene-java/LuceneFAQ#How_can_I_search_over_multiple_fields.3F > 2. How to specify some key fields as well as some less important > fields? Boosting. See http://wiki.apache.org/lucene-java/LuceneFAQ#What_is_the_difference_between_field_.28or_document.29_boosting_and_query_boosting.3F > 3. How many fields would cause performance issue? Impossible to answer since there are too many variables but in general the fewer fields used in a search the faster it will be. There are many other factors, some of which are likely to outweigh this. See http://wiki.apache.org/lucene-java/ImproveSearchingSpeed. -- Ian. --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
