Re: Could postgres12 support millions of sequences? (like 10 million)

You are going to have to lose the not blocking requirement, or at least define what blocking and non-blocking interactions look like.

What does it mean that bid# 123 exists?  Can you, by way of example, just create a table of all possible bid numbers and update a null column with a timestamp saying “this bid came into existence at this moment”?

David J.