In this blog post, I am going to show why we have to be careful with stored functions in select list, as a single query can cause thousands of queries in the background if we arent cautious. For this example, I am only going to use the SLEEP function to demonstrate the issue, but you [&]

https://www.percona.com/blog/2019/06/26/stored-functions-and-temporary-tables-are-not-a-good-fit/