On Thu, 2024-02-22 at 10:16 +0530, Rajesh Kumar wrote: > So, is there a way to change to 64bit? https://www.postgresql.org/search/?m=1&q=64-bit+xid&l=1&d=-1&s=r - it is appealing - it would break "pg_upgrade" - it would inflate each table row by 8 bytes Yours, Laurenz Albe