ReversedWildcardFilterFactory Question

[Jamie Johnson]

I'm trying to determine when it is appropriate to use the
solr.ReversedWildcardFilterFactory, specifically if I have a field
content of type text (from default schema) which I want to be able to
search with leading wildcards do I need to index this information into
both a text field and a text_rev field, or is it sufficient to just
index the information into a text_rev field?  I *think* that it only
needs to be in text_rev, but I want to make sure before I go mucking
with my schema.