Right, i can combine that into one fq query.  

The only thing is that i want to reduce the cache size.  

I remember this is what i read from wiki.  

fq=rating:R         (filter query cache A)
fq=rating:PG-13  (filter query cache B)
fq=rating:(R O PG-13)  --  (It won't be able to leverage the filter query
cache A and B above, instead it will create another whole new filter query
cache C)

fq=rating:R&fq=rating:PG-13  -- (Will be able to leverage filter query cache
A and B)


I will have a lot of queries with different combination of the values out of
the same field, rating.   Therefore, i thought if the logical relation among
filter query is OR, it will control the number of distinct cache to be
distinct number of rating value.  


Does it matter?

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