Query generates infinite loop - Mailing list pgsql-bugs

I was implementing the infinity time constants in DuckDB when I ran into an infinite loop. It seems that PG has the same problem for the same reason (adding an interval to an infinite timestamp produces the same timestamp, so the increment operation never goes anywhere.)  Here is the query:

This seems like a DoS great attack, so we are disallowing infinities as bounds for both table and scalar series generation. As an upper bound, it eventually gives an error, so it seems  there is not much utility anyway.