Transaction ID modulo
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/13/routine-vacuuming.html
Description:
Hello,
transaction ID modulo is not correct.
The sentence "Normal XIDs are compared using modulo-2^32 arithmetic" should
be "Normal XIDs are compared using modulo-2^31 arithmetic"
On Thu, Feb 18, 2021 at 01:54:37PM +0000, PG Doc comments form wrote:
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/13/routine-vacuuming.html
Description:Hello,
transaction ID modulo is not correct.
The sentence "Normal XIDs are compared using modulo-2^32 arithmetic" should
be "Normal XIDs are compared using modulo-2^31 arithmetic"
Uh, we use full 32-bit values that wrap around; the top bit is just
another bit to us. I think the docs are correct.
--
Bruce Momjian <bruce@momjian.us> https://momjian.us
EDB https://enterprisedb.com
The usefulness of a cup is in its emptiness, Bruce Lee