Ok, this is the coolest thing this Hive user has seen all day.
As you probably know, if you prepend the word EXPLAIN to your SQL query and then run it, Hive prints out a text description of the query plan. This lets you explore the effects such variations as code changes, the use of analyze, turning on/off the cost-based optimizer (CBO), and so on. It’s an essential tool for optimizing Hive.
The output of EXPLAIN is far from pretty, but fortunately, a simple pipeline of Linux commands can give you a slick graphical rendition like the one below.