Comment by azisk1

I am not claiming that upper-case is more readable in general. I know the practice to write SQL keywords in upper-case and I find it more readable. From https://stackoverflow.com/a/608201/7714279 "You can easily separate the keywords from table and column names, etc." However, it's a choice. Some people rely for code highlighting but this gets messy if we write SQL code inside Python code. This is especially where this library comes to lend a hand