I saw only ways using delta import with last_modified. Is there some other ways to do delta_imports withut using timestamps? For example, if i have unique key(integer), can i tell SOLR to index only those, which are greater then my last unique key?
I ve been reading up on the Sphinx search engine and the Thinking Sphinx gem. In the TS docs it says... Sphinx has one major limitation when compared to a lot of other search services: you cannot ...