On Mon, Sep 21, 2009 at 3:30 AM, Aleksander Stensby <aleksander.sten...@integrasco.com> wrote: > So I'm wondering if the Trie based field types are less memory expensive > than the "old" SortableXXFields? > sorting on the date field (which is a TrieDateField) works fine (and > fast)...
In general, yes (assuming there are many unique values - your ID field would qualify). SortableXXFields used the StringIndex (the only option in the past)... Trie* fields FieldCache entry use long[maxDoc] for TrieLong and TrieDate. -Yonik http://www.lucidimagination.com
