indexing unique keys

[Mark , N]

I have a use-case where we want to store unique keys ( Hashes)  which would
be
used to compare against another set of  keys ( Hashes)

For example

 Index  set= { h1, h2 , h3 , h4 }

comparision set = { h1 , h2 }

result set = h1,h2

Would it be an advantage to store "index set" in  Solr instead of storing
in traditional databases?

Thanks in advance






*Nipen Mark *