On 2020-Jun-18, Tom Lane wrote: > Surely it's insufficient as-is, because there is no reason to suppose > that errno is zero at entry. You'd need to set errno = 0 first.
Oh, right. > Also it's fairly customary in our sources to include a comment about > this machination; so the full ritual is usually more like Yeah, I had that in my local copy. Done like that in all the most obvious places. But there are more places that are still wrong: I believe every single place that calls WRITE_ERROR_EXIT is doing the wrong thing. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services