Yes, the behavior is documented there. I would suggest to add one sentence about it to transactions page.
Thank you пн, 9 трав. 2022, 04:27 користувач David G. Johnston < david.g.johns...@gmail.com> пише: > 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. > >
