On Saturday, May 7, 2022, PG Doc comments form <nore...@postgresql.org> wrote:
> The following documentation comment has been logged on the website: > > Page: https://www.postgresql.org/docs/14/transaction-iso.html > Description: > > Hello > I've noticed, if two transactions in read committed mode are trying to > insert same value to unique column, second transaction INSERT will wait for > the first transaction commit or rollback. Can't see this behavior > explicitly > stated in the doc about transaction isolation modes. > > It is documented elsewhere: https://www.postgresql.org/docs/current/index-unique-checks.html David J.
