Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> writes:
> BTW which other thread? I don't see any other threads mentioning this
> function.
https://www.postgresql.org/message-id/flat/CA%2Bu7OA65%2BjEFb_TyV5g%2BKq%2BonyJ2skMOPzgTgFH%2BqgLwszRqvw%40mail.gmail.com
regards, tom lane