I am so bad about getting 'in progress' pictures, by the time I remembered I was practically done with the build.
The original plan I started with only had a 31" long tabletop. My four year old wouldn't be able to sit more than one more friend at the table with him. I realized that I would be altering these plans for sure!
Another view, here you can see the under support which wasn't in the original plans. I felt it necessary to add this with the length added to the top. I also wanted to add an umbrella and felt that the lower support would be helpful with the umbrella as well.