[elesbao]

I used to have this same argument but apart from the few that I've used on solr, it is not trivial to have general search using it. Won't even comment on ES b/c they already target analytics better than search. I think it is worth exploring pg and other tools as all search cases are narrow/specific (ecomm, graphs, domain-specific documents etc), specially if you need facets and filtering. Also multilanguage ok to consider for a tool but products usually look for better recall at their original lang then to have same results in other languages.