Transaction ID wraparound

This article summarizes information I have about this problem. I know that this is not all but I did not find such a summarization anywhere therefore I place it here. Maybe it could help to someone.   Transaction ID has 32 bits. It means that after ID 2147483648...

Find newly inserted records / Identify changed tables

Do you need to identify newly inserted records in some table? Of course you can add some special column of yours which you will update. But this solution is not much useful when you have really big amount of data because PostgreSQL deletes all old records and inserts...