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Short answer: It might be possible, but it will require lots of effort.
Long answer:
Make doesn’t have a module to “Watch” for new items in PostgreSQL.
You can suggest for it to be made in the Idea exchange. Don’t forget to search for it first, just in case someone already suggested it, so that you don’t end up creating a duplicate.
It might be possible to do it with the “Execute a query” module to get the latest items, and see if the row’s timestamp is greater than the last time the scenario was run. However I won’t be able to help with that since it will take time.
Alternatively, you can use other databases that has a “new items” trigger. You can find alternatives on https://www.make.com/en/integrations/category/databases?community=1&verified=1
Hope this helps! Let me know if there are any further questions or issues.
Note: I see hundreds of posts, notifications, and messages daily on this forum, so if I missed your reply, please message me to look at your reply.
— @samliew
P.S.: Did you know, the concepts of about 70% of questions asked on this forum are already covered in the Make Academy. Investing some effort into it will save you lots of time and frustration using Make later!