Well I think my question is somewhat away from my intention cause of my poor understanding and questioning :(
Actually, I have 1TB data and have hardware spec enough to handle this amount of data, but the problem is that it needs too many join operations and the analysis process is going too slow right now.
I've searched and found that graph model nicely fits for network data like social data in query performance.
Should I change my DB (I mean my DB for analysis)? or do I need some other solutions or any extension?
Thanks