Hi, again, Kelly. You did not say what kind of wood it was but I am going guess that it is oak or ash or even mahogany or some other coarse grained wood. You can fill woods like these prior to finishing with a paste wood filler and get a mirror smooth finish but most people (including me) usually don't. Therefore, the finish will follow the normal texture of the wood. You will still have plenty of protection and it is just a "cosmetic" matter about the look of the finish. If your table really is an antique, I'm sure that it still looks as it originally did.
If you can give me nore details, perhaps I can give you more information. Henry in MI