Hi! On Mon, Nov 16, 2020 at 1:09 PM <a.pervush...@postgrespro.ru> wrote: > I've changed the BEGIN WAIT FOR LSN statement to core functions > pg_waitlsn, pg_waitlsn_infinite and pg_waitlsn_no_wait. > Currently the functions work inside repeatable read transactions, but > waitlsn creates a snapshot if called first in a transaction block, which > can possibly lead the transaction to working incorrectly, so the > function gives a warning. > > Usage examples > ========== > select pg_waitlsn(‘LSN’, timeout); > select pg_waitlsn_infinite(‘LSN’); > select pg_waitlsn_no_wait(‘LSN’);
The name pg_waitlsn_no_wait() looks confusing. I've tried to see how it's documented, but the patch doesn't contain documentation... ------ Regards, Alexander Korotkov
