SOLR search array vs individual documents - solr

Question

I've got a business case where I need to check if the search query is about displays businesses
eg: q="night clubs new york"
I've got a list of Countries, state city and region in my database 3million + records and I've got a list of business categories.
All I want to do is check if in the query has a business category in it (night clubs) and does it have a City, state or country's name (new york). So i'm checking the number of results retuned for the below query. If I get 2 numResults then this is a business query and then I query my Solr index to search for businesses.
query: places_ss:(night clubs new york) OR categories_ss:(night clubs new york)
Speed Question: How should I save the list of cities, states and countries in SOLR to get maximum search speed ?
Have one document id:places and add distinct cities, states and countries in on array places_ss
have multiple documents with different id's with 100,000 place names in each document in an array.
?
have a document or multiple documents with place_s string(not array) each place separated by space and each space in place separated by underscore eg: new york becomes new_york.
And during query time I will get multiple combinations of night clubs new york
eg: night night_clubs night_clubs_new night_clubs_new_york clubs_new clubs_new_york new_york york and query for place.
Would it be a good idea to have a separate core just for above place documents to increase speed ?
Is this a good solution ?

Answer 1

Document organisation :
better to have a document approche with :
- location
- activity
- other things needed!
location
You should save your location like this
Country:state:city:suburb.... so that you can seach in usa:new york:new york*
of ::new york
No need for _
avoid that, there is no needs !
activity
activity should be stored in another field for precision on the search and speed.