[Koha] Storage structure of Koha3 for Marc fields.

[echuang.chew]

Greetings,

I am new to Koha3, after I upgraded my Koha2 to Koha3, notice that the 
database design has been changed.
FYI, I am using the non zebra version of Koha3. Can anyone tell me is 
Koha3 still using marc_XXXX tables to stored the marc fields ?
Or is it any configuration to be done so that Koha3 will still using the 
marc_XXXX for storing marc fields ?

Can anyone please help me ?

Best Regards,
eChuang, Chew