Learn the rules first o then you can break them later. For starting a english speaking world, start at the top, read left to right. The plans are indented, so they're a list of operations that postgrit is doing. They explain has in your data base for post grests. It uses many as your version supports. Is my intense, ben my recommendation. So get a lot of information, is the short version of that. You could spend easily an hour trying to understand that entire query plan,. maybe more, maybe you've been interrupted a few times. And then you see that planning time was the problem the whole time.