Hi @douglasshuang Shoot! Well unfortunately it’s too late to fix it in the book. I do have the functions or similar ones here in the Rideshare source. If you’d like to create a PR it might help someone else who goes looking. This thread may also help them find it. rideshare/db/functions at main · andyatkinson/rideshare · GitHub Fortunately since the intent was to have similar sized data but scrubbed, if it’s one character too long of random text, at least it will be uniformly 1 character too long, so the proportions of lengths should stay the same. Thanks for continuing to be a reader and bug finder. This forum had gotten pretty quiet lately! 