As suggested before, the real killer for performance in Lucene is when you have to read a stored field. It doesn't matter how small the one field you want is, Lucene will read *all* fields for that document off the disk. If you have a large "body" field that will get read too when you try read the "state" stored field.
Your example code in the last post will fall foul of this. The two proposed solutions (Doug's and mine) avoid the need to read *stored* fields by making use of the *indexed* part of your "state" field. TermDocs is the way to find all the docs that are related to the value of an indexed field eg all docs in the state "Texas". Doug's suggested solution uses a cached mapping of docIds to field values (using FieldCache) whereas my approach re-reads the termDocs each time. I have found re-reading termDocs to be pretty fast but you may want to sacrifice some memory for extra speed - your choice. Cheers, Mark Send instant messages to your online friends http://uk.messenger.yahoo.com --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
