He has written an integrated npm plv8 and select shortid generate short link id service, in fact, we can integrate a trigger to automatically generate the corresponding short url link address, hashids also a good.
The following is a blog written by someone else a reference implementation can
https://blog.abevoelker.com/2017-01-03/generating-youtube-like-ids-in-postgres-using-plv8-and-hashids/